Find Cheap Flights from Ottawa to London (YOW - LON)

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FAQs for Booking Ottawa to London Flights

How long does a flight from Ottawa to London take?
An average nonstop flight takes 6h 45m, covering a distance of 5366 km.
How many flights are there between Ottawa and London?
There are 176 (nonstop) flights between Ottawa and London per week, averaging 25 per day.
Which airlines provide the cheapest flights from Ottawa to London?
In the past 3 days, the cheapest round-trip tickets were found on WestJet (C$ 619), Multiple Airlines (C$ 704) and Air Canada (C$ 797).
Do I need a passport to fly between Ottawa and London?
Yes.
Which airlines fly most frequently between Ottawa and London?
Austrian Airlines (2 times daily), SriLankan (2 times daily), Air India (2 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly from Ottawa to London?
For Ottawa to London, Saturday is the cheapest day to fly on average and Thursday is the most expensive. Flying from London back to Ottawa, the best deals are generally found on Tuesday, with Friday being the most expensive.

Good to Know

Low Season:
May
Best time to beat the crowds
2%
expected price decrease
High Season:
December
Most popular time to fly
4%
expected price increase
Average price:
C$ 1128
(avg. price over the last 2 weeks)
Good Deal:
C$ 808
or less (round trip)

When to Book Flights from Ottawa to London

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

When looking for a cheap flight, consider that 25% of our users selected a flight on this route for C$ 807 or less.
The cheapest flight from Ottawa to London was found, on average, 52 days before departure.
Book at least 4 weeks before departure in order to get a below-average price.
Morning departure is around 17% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Book cheap flights from Ottawa to London (round-trip)

Airports
Origin
Ottawa
C$ 619
only
C$ 619
Destination
London
C$ 704
only
C$ 704
C$ 619
only
C$ 619
Sat, 3 Feb
YOW
LGW
32h 23m
Wed, 7 Feb
LGW
YOW
17h 15m
C$ 619
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3589 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
YVR
YYZ
Okay 5.3

The flights were on time and the staff were polite and nice.

Everything on a WestJet flight is extra and only the bare minimum is offered. There are no TVs in the seats and the seats themselves are small and jammed close together.

YLW
YEG
Mediocre 3.3

Crew overworked but pleasant and doing their best. Self check in works well with assistance

Management decisions meant assigned crew arrived after our flight supposed to depart. Needed 1 more person to service passengers. We waited a long time after serving started to get served. We did not know that food could be preordered online and served soon after takeoff. No TV screens on back of chairs...had to rent device to see movies. Have app but not able to book and get points. Wrote to WJ for help but oo response

YYZ
YWG
Excellent 8.0

Cabin was too cold

YEG
CUN
Good 6.6

A short haul flight

No issues

IAH
YYC
Excellent 8.0

Good amount of leg room

Bathroom didn't work in the back of the airplane

Wed, 18 Apr
YOW
LHR
6h 45m
Tue, 24 Apr
LHR
YOW
7h 35m
C$ 704
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 7 May
YOW
LHR
8h 05m
Tue, 22 May
LHR
YOW
12h 36m
C$ 797
Trip: 16 days
6.6GoodShow reviews
Overall 6.6 Good
Based on 10 reviews
Overall
7.2
Boarding
7.3
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.4
BWI
YYZ
Excellent 8.0

everything

no entertainment

YUL
LGA
Excellent 10.0

Where do i start? It’s a short flight to be sure but air canada planes never feel like many Other airlines’ mini planes or puddle jumpers. they seem new, spacious, seat back Entertainemnt, just great. Also, there is no scrimping on Service. How many Delta or united or American flights have i taken on this route only to be told “coffee or water” and sometimes no coffee “the flight is too short”. Nonsense! Granted I was in business, but I had a full hot breakfast served and a full array of beverages offered. It AC can do it, everyone can. The flight attendant was lovely.

The flight was too short :)

YOW
LHR
Okay 4.0

Nothin

IFE and food were awful. Space was cramped, lights left on for a night flight. AirCanada headphone rules are just dumb.

TPE
YVR
Good 6.0

Price.

smaller aircraft with very limited overhead bag storage. Constantly have to announce volunteers for bag check in. Happen both ways. Atl to Toronto and Toronto to Atl.

YOW
LHR
Good 6.6

Free wine with hot meal provided.

Cramped seating so could not sleep on overnight flight. Person in front of me had seat reclined , should be banned with such tight seating.

Wed, 9 May
YOW
LHR
6h 45m
Wed, 23 May
LHR
YOW
12h 36m
C$ 797
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 26 Mar
YOW
LHR
8h 25m
Tue, 3 Apr
LHR
YOW
7h 35m
C$ 813
Trip: 9 days
10.0ExcellentShow reviews
Overall 10.0 Excellent
Based on 1 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
MAN
MUC
Excellent 8.0

Perfectly okay flight, slept through with no disturbances. Crew were friendly enough and landed fine. Airport took me a while to figure out though.

FRA
BHX
Okay 5.3

The crew were excellent and plane was comfortable

The plane was way out of the terminal and I had asked for assistance which I had going and most of coming back until the last part getting on to the plane at Lufthansa no-one came at Birmingham either. I struggled to collect my case and walk through to the exit.

FRA
BEY
Excellent 8.0

Very comfortable flight. Good crew member little little bit uptight but expected. Efficient and on time

Need to upgrade mefia hardware to 21st century.

FRA
JFK
Excellent 9.0

Lufthansa pilots are some of the best in the industry and the flight was extremely smooth from take off to landing. There were bouts of turbulence but the pilot immediately changed altitudes to steer away from it. Flying on the 748 is a pleasure and it's a shame these great planes will eventually all be phased out in favor of more fuel efficient 787s and their Airbus counterparts.

Having to pay 86€ for a second suitcase that weighed just 15kg. In JFK they didn't charge me but Germans always go by the book. I think for the price of the ticket and lower gasoline costs compared to the height of the recession this is simply outrageous. Next time I'll pay for economy plus. You get a seat that is wider than economy but a little bit less legroom than a business one and the second baggage is included. The meal was nothing special but the friendliness of the flight attendants made up for it.

DFW
FRA
Excellent 10.0

The planes are comfortable, the crew are always nice and polite and have smiles on there faces.

Mon, 16 Apr
YOW
LHR
11h 15m
Sun, 29 Apr
LHR
YOW
25h 22m
C$ 839
Trip: 14 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 1375 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
BRU
GVA
Okay 4.0

They did not even offer water to drink for free.

YYZ
BRU
Okay 5.6

Crew was very pleasant and friendly. Departure and arrival was on time.

Very narrow and uncomfortable seats.

LYS
BRU
Excellent 9.0

I travel often with Brussels Airlines and often run out of movies I want to watch during my trips. Air France has a selection of movies that is 2-3 times the number of movies offered by Brussels.

JFK
BRU
Excellent 10.0

They gave us a pillow and blanket so we could sleep. They offered a good selection of movies and other entertainment. The airline staff was friendly and helpful.

Seating was cramped but all airlines treat their three class clients like cattle.

PRG
BRU
Okay 4.6

Good leg space and went on time.

Cup of coffee would be nice but this you need to buy and this is STUPID Expensive

Mon, 26 Feb
YOW
LGW
34h 30m
Wed, 14 Mar
LGW
YOW
16h 16m
C$ 643
Trip: 16 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3589 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
YWG
YYZ
Excellent 10.0

Some more food options

YYC
JFK
Excellent 10.0

The flight / staff all went as it should. The transfer of information from kayak to WestJet was seamless.

YLW
YEG
Mediocre 3.3

Crew overworked but pleasant and doing their best. Self check in works well with assistance

Management decisions meant assigned crew arrived after our flight supposed to depart. Needed 1 more person to service passengers. We waited a long time after serving started to get served. We did not know that food could be preordered online and served soon after takeoff. No TV screens on back of chairs...had to rent device to see movies. Have app but not able to book and get points. Wrote to WJ for help but oo response

YEG
CUN
Good 6.6

A short haul flight

No issues

LAX
YEG
Okay 5.6

Delayed flight. Only got home at 1.30am.

Mon, 26 Feb
YOW
LGW
34h 30m
Tue, 6 Mar
LGW
YOW
26h 12m
C$ 648
Trip: 9 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3589 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
YYC
LAX
Excellent 10.0

The overall experience on my westjet trip was great. Everything west jet does - and all the groups in the airport are fantastic !

YLW
YEG
Mediocre 3.3

Crew overworked but pleasant and doing their best. Self check in works well with assistance

Management decisions meant assigned crew arrived after our flight supposed to depart. Needed 1 more person to service passengers. We waited a long time after serving started to get served. We did not know that food could be preordered online and served soon after takeoff. No TV screens on back of chairs...had to rent device to see movies. Have app but not able to book and get points. Wrote to WJ for help but oo response

YLW
YVR
Excellent 10.0

Was on time and i was upgraded at no charge. The westjet staff is always friendly.

YVR
YYZ
Okay 5.3

The flights were on time and the staff were polite and nice.

Everything on a WestJet flight is extra and only the bare minimum is offered. There are no TVs in the seats and the seats themselves are small and jammed close together.

YWG
YYZ
Excellent 10.0

Some more food options

Thu, 19 Apr
YOW
LHR
6h 45m
Tue, 24 Apr
LHR
YOW
7h 35m
C$ 741
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 26 Jan
YOW
LGW
12h 23m
Mon, 5 Feb
LGW
YOW
32h 20m
C$ 649
Trip: 11 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3589 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
LAX
YEG
Okay 5.6

Delayed flight. Only got home at 1.30am.

IAH
YYC
Excellent 8.0

Good amount of leg room

Bathroom didn't work in the back of the airplane

YVR
YLW
Okay 4.0

Timing flights were on time.

Baggage delay at vancuvour and as well as in calgary.

YYC
LAX
Excellent 10.0

The overall experience on my westjet trip was great. Everything west jet does - and all the groups in the airport are fantastic !

YYC
JFK
Excellent 10.0

The flight / staff all went as it should. The transfer of information from kayak to WestJet was seamless.

Tue, 8 May
YOW
LHR
9h 15m
Tue, 22 May
LHR
YOW
12h 36m
C$ 797
Trip: 15 days
6.6GoodShow reviews
Overall 6.6 Good
Based on 10 reviews
Overall
7.2
Boarding
7.3
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.4
LAX
YVR
Excellent 8.4

One of the crewmembers (regrettably, I did not catch his name) was incredibly kind when I moved seats to accommodate a couple that wanted to sit together. He really made this flight great.

Seats were comfortable but the row I moved to did not allow me to recline.

YOW
LHR
Good 6.0

Decent service.

I paid 100$ for my seat, for more leg room. It happened that the seat next to me was unoccupied. I thought it would give me an opportunity to stretch out a bit to sleep on the Atlantic crossing. Another passenger's tv didn't work so one of the stewardess told him he could sit next to me. He got more leg room for free. I was cramped and could not sleep because of muscle spasm. The Legal age made it more comfortable but it is not worth 100$

YUL
LGA
Excellent 10.0

Where do i start? It’s a short flight to be sure but air canada planes never feel like many Other airlines’ mini planes or puddle jumpers. they seem new, spacious, seat back Entertainemnt, just great. Also, there is no scrimping on Service. How many Delta or united or American flights have i taken on this route only to be told “coffee or water” and sometimes no coffee “the flight is too short”. Nonsense! Granted I was in business, but I had a full hot breakfast served and a full array of beverages offered. It AC can do it, everyone can. The flight attendant was lovely.

The flight was too short :)

TPE
YVR
Good 6.0

Price.

smaller aircraft with very limited overhead bag storage. Constantly have to announce volunteers for bag check in. Happen both ways. Atl to Toronto and Toronto to Atl.

BWI
YYZ
Excellent 8.0

everything

no entertainment

Tue, 27 Mar
YOW
LHR
10h 10m
Tue, 3 Apr
LHR
YOW
7h 35m
C$ 813
Trip: 8 days
10.0ExcellentShow reviews
Overall 10.0 Excellent
Based on 1 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
FRA
JFK
Excellent 9.0

Lufthansa pilots are some of the best in the industry and the flight was extremely smooth from take off to landing. There were bouts of turbulence but the pilot immediately changed altitudes to steer away from it. Flying on the 748 is a pleasure and it's a shame these great planes will eventually all be phased out in favor of more fuel efficient 787s and their Airbus counterparts.

Having to pay 86€ for a second suitcase that weighed just 15kg. In JFK they didn't charge me but Germans always go by the book. I think for the price of the ticket and lower gasoline costs compared to the height of the recession this is simply outrageous. Next time I'll pay for economy plus. You get a seat that is wider than economy but a little bit less legroom than a business one and the second baggage is included. The meal was nothing special but the friendliness of the flight attendants made up for it.

MAN
MUC
Excellent 8.0

Perfectly okay flight, slept through with no disturbances. Crew were friendly enough and landed fine. Airport took me a while to figure out though.

BUD
MUC
Excellent 10.0

My flight from Budapest took off hour later then scheduled. We landed in Munich only ten minutes before the international flight's take off to San Francisco. Upon the Munich landing, eight of us were escorted on a special bus, with a special pass controll and on special routs to make sure we get on the plane on time. Our laggage managed to get on the same plane as well. Thank you Lufthansa!

FRA
BEY
Excellent 8.0

Very comfortable flight. Good crew member little little bit uptight but expected. Efficient and on time

Need to upgrade mefia hardware to 21st century.

FRA
TLV
Mediocre 3.0

There was no food included, although the flight wasn't low cost, we didn't even get drinks, not even water. We asked for a glass of water from the crew, but they were busy selling the food and forgot about us.

Fri, 24 Nov
YOW
LHR
6h 45m
Sun, 26 Nov
LHR
YOW
10h 09m
C$ 758
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Tue, 17 Apr
YOW
LHR
11h 15m
Sun, 29 Apr
LHR
YOW
32h 07m
C$ 839
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 1375 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
JFK
BRU
Excellent 10.0

They gave us a pillow and blanket so we could sleep. They offered a good selection of movies and other entertainment. The airline staff was friendly and helpful.

Seating was cramped but all airlines treat their three class clients like cattle.

DLA
BRU
Mediocre 2.0

Nothing!! And by the way this is the last time I travel with you guys. I couldn’t travel because of my itinerary doula -Bruxelle - Zurich- Washington Dulles . I was not told when I bought the ticket that I will need a visa to transit between Bruxel to Zurich. Now they told me that my only option is to buy another ticket . Thank God éthiopien Airline was more affordable.

Nothing!! And by the way this is the last time I travel with you guys. I couldn’t travel because of my itinerary doula -Bruxelle - Zurich- Washington Dulles . I was not told when I bought the ticket that I will need a visa to transit between Bruxel to Zurich. The day I was suppose to travel ,they told me at the airport that my only option is to buy another ticket . Thank God éthiopien Airline was more affordable.

PRG
BRU
Okay 4.6

Good leg space and went on time.

Cup of coffee would be nice but this you need to buy and this is STUPID Expensive

BHX
BRU
Good 6.6

Ok easy flight. Crew were great, really friendly:)

Seats to small, food humm? Dubious

BHX
BRU
Excellent 9.5

Punctual, clean plane, friendly service

Everything was as expected. Full flight!

Thu, 7 Dec
YOW
LHR
10h 15m
Tue, 12 Dec
LHR
YOW
11h 50m
C$ 841
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Wed, 21 Mar
YOW
LGW
10h 30m
Wed, 28 Mar
LGW
YOW
12h 23m
C$ 654
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3589 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
YLW
YVR
Excellent 10.0

Was on time and i was upgraded at no charge. The westjet staff is always friendly.

YVR
YLW
Okay 4.0

Timing flights were on time.

Baggage delay at vancuvour and as well as in calgary.

YYZ
YWG
Excellent 8.0

Cabin was too cold

YYC
LAX
Excellent 10.0

The overall experience on my westjet trip was great. Everything west jet does - and all the groups in the airport are fantastic !

YVR
YYZ
Okay 5.3

The flights were on time and the staff were polite and nice.

Everything on a WestJet flight is extra and only the bare minimum is offered. There are no TVs in the seats and the seats themselves are small and jammed close together.

Wed, 9 May
YOW
LHR
8h 05m
Tue, 22 May
LHR
YOW
12h 36m
C$ 797
Trip: 14 days
6.6GoodShow reviews
Overall 6.6 Good
Based on 10 reviews
Overall
7.2
Boarding
7.3
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.4
YUL
LGA
Excellent 10.0

Where do i start? It’s a short flight to be sure but air canada planes never feel like many Other airlines’ mini planes or puddle jumpers. they seem new, spacious, seat back Entertainemnt, just great. Also, there is no scrimping on Service. How many Delta or united or American flights have i taken on this route only to be told “coffee or water” and sometimes no coffee “the flight is too short”. Nonsense! Granted I was in business, but I had a full hot breakfast served and a full array of beverages offered. It AC can do it, everyone can. The flight attendant was lovely.

The flight was too short :)

YVR
YYC
Excellent 10.0

Spacious aircraft, great flight attendants very clean bathrooms, lots of snacks and foods

YOW
LHR
Good 6.0

Decent service.

I paid 100$ for my seat, for more leg room. It happened that the seat next to me was unoccupied. I thought it would give me an opportunity to stretch out a bit to sleep on the Atlantic crossing. Another passenger's tv didn't work so one of the stewardess told him he could sit next to me. He got more leg room for free. I was cramped and could not sleep because of muscle spasm. The Legal age made it more comfortable but it is not worth 100$

YOW
LHR
Good 6.6

Free wine with hot meal provided.

Cramped seating so could not sleep on overnight flight. Person in front of me had seat reclined , should be banned with such tight seating.

PVG
YUL
Excellent 9.6

AC 018 takes the shortest route from Shanghai to Montreal. The check in and boarding were like a breeze. Cabin was clean, staff were amiable and hard working. The variety of drinks were plenty, the food matched the standard of cost efficiency flight ticket so how could you complain it? On board TV/Movie has new coming features such as HBO's Game of The Thorne, season 7. It was a comfortable and pleasant journey with the team of AC 018. Merci beaucoup!

Wed, 28 Mar
YOW
LHR
6h 45m
Tue, 3 Apr
LHR
YOW
7h 35m
C$ 813
Trip: 7 days
10.0ExcellentShow reviews
Overall 10.0 Excellent
Based on 1 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
FRA
BEY
Excellent 8.0

Very comfortable flight. Good crew member little little bit uptight but expected. Efficient and on time

Need to upgrade mefia hardware to 21st century.

IST
FRA
Excellent 9.6

The food and service was superb.

MAN
MUC
Excellent 8.0

Perfectly okay flight, slept through with no disturbances. Crew were friendly enough and landed fine. Airport took me a while to figure out though.

DFW
FRA
Excellent 10.0

The planes are comfortable, the crew are always nice and polite and have smiles on there faces.

FRA
DUS
Excellent 10.0

Timeliness of departure time Ease of navigating airport to find departure gate

Nothing comes to mind Good flight over all

Sat, 12 May
YOW
LHR
26h 35m
Mon, 14 May
LHR
YOW
32h 21m
C$ 843
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 1375 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
BHX
BRU
Good 6.6

Ok easy flight. Crew were great, really friendly:)

Seats to small, food humm? Dubious

BRU
LIS
Mediocre 3.6

NOTHING

We had to wait 1 hour inside the airplane because there was fog in Lisbon. Flight took 2.5 hours and the Fog cleared long before we landed so there was no need to wait 1 hour in the airplane where we had NO leg space at all. As compensation they could at leased given us coffee for free and not have to buy for a bloody expensive high price.

DLA
BRU
Mediocre 2.0

Nothing!! And by the way this is the last time I travel with you guys. I couldn’t travel because of my itinerary doula -Bruxelle - Zurich- Washington Dulles . I was not told when I bought the ticket that I will need a visa to transit between Bruxel to Zurich. Now they told me that my only option is to buy another ticket . Thank God éthiopien Airline was more affordable.

Nothing!! And by the way this is the last time I travel with you guys. I couldn’t travel because of my itinerary doula -Bruxelle - Zurich- Washington Dulles . I was not told when I bought the ticket that I will need a visa to transit between Bruxel to Zurich. The day I was suppose to travel ,they told me at the airport that my only option is to buy another ticket . Thank God éthiopien Airline was more affordable.

JFK
BRU
Okay 4.0

Paid extra to secure aisle seat booking, reconfirmed byne two days before flight, at check-in was reassigned to a middle seat, without explanatiob or apology. Had to be uncomfortably adamant about paid aisle seat reservation for them to put me in one of the several still available.

LYS
BRU
Excellent 9.0

I travel often with Brussels Airlines and often run out of movies I want to watch during my trips. Air France has a selection of movies that is 2-3 times the number of movies offered by Brussels.

Tue, 27 Mar
YOW
LHR
6h 45m
Mon, 2 Apr
LHR
YOW
12h 22m
C$ 776
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.