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

Search hundreds of travel sites at once for deals on flights to Ottawa

Fri 24/11
Fri 1/12
Any month
Compare vs. KAYAK |

FAQs for Booking London to Ottawa Flights

How long does a flight from London to Ottawa take?
An average nonstop flight takes 10h 40m, covering a distance of 5366 km.
How many flights are there between London and Ottawa?
There are 176 (nonstop) flights between London and Ottawa per week, averaging 23 per day.
Which airlines provide the cheapest flights from London to Ottawa?
In the past 3 days, the cheapest round-trip tickets were found on WestJet (C$ 510), Multiple Airlines (C$ 701) and Lufthansa (C$ 765).
Do I need a passport to fly between London and Ottawa?
Yes.
Which airlines fly most frequently between London and Ottawa?
Air Canada (2 times daily), Austrian Airlines (2 times daily), SriLankan (2 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly from London to Ottawa?
For London to Ottawa, Friday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Ottawa back to London, the best deals are generally found on Monday, with Saturday being the most expensive.

Good to Know

Low Season:
May
Best time to beat the crowds
2%
expected price decrease
High Season:
July
Most popular time to fly
10%
expected price increase
Average price:
C$ 1193
(avg. price over the last 2 weeks)
Good Deal:
C$ 857
or less (round trip)

When to Book Flights from London to Ottawa

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

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for C$ 856 or less.
The cheapest flight from London to Ottawa was found, on average, 57 days before departure.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is May.
Morning departure is around 12% more expensive 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 London to Ottawa (round-trip)

Airports
Origin
London
C$ 753
only
C$ 753
C$ 823
only
C$ 823
C$ 510
only
C$ 510
Destination
Ottawa
C$ 510
only
C$ 510
Fri, 1 Dec
LGW
YOW
10h 57m
Mon, 4 Dec
YOW
LGW
34h 30m
C$ 510
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3696 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
YYC
YXJ
Excellent 8.4

I liked the flight attendants sense of humour!

YEG
YMM
Good 7.6

Overall flight and connections were good. Board process was smooth and flight departed and arrived on time. Watch for baggage delays when arriving in Fort McMurray as they can sometimes be excessive. No entertainment provided on the smaller planes but most people have some form of entertainment with them.

YWG
YYZ
Good 7.6

Quick boarding, good customer service, and friendly staff.

When I booked online it was a little unclear that I would have to pay extra to check a bag. No problem but would make a better customer experience if I had been aware of this

YYZ
YYC
Mediocre 2.6

I had a very rude and mean flight attendant. I was yelled at and wasn’t offered any beverages or food afterwards. I was ending a phone call with the rcmp and without rudely hanging up on him due to my truck being stolen and being out of the country for 11 days. I was yelled at from 6 rows away in a very arrogant rude tone for the whole plane to hear. I was embarrassed and uncomfortable for the rest of the flight as well as being in a bad mood. Not being offered any beverages or food afterwards also made for a long flight. Was not impressed in the slightest as I fly with west jet every week and have never had such a rude flight attendant.

LGA
YYZ
Excellent 10.0

Not applicable

Mon, 26 Mar
LGW
YOW
16h 16m
Sat, 28 Apr
YOW
LGW
18h 40m
C$ 701
Trip: 34 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 16 Feb
LHR
YOW
28h 09m
Mon, 26 Feb
YOW
LHR
6h 45m
C$ 765
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16888 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
MUC
LAX
Excellent 9.0

I didn't like the food

MCO
FRA
Good 7.6

The boarding process was very fast and smooth

The seating space is very tight, more space is needed specially for tall people.

FRA
ORD
Excellent 8.6

We liked that no one was sitting behind us.

Food wasn’t great

FRA
RUH
Good 7.6

The boarding process was very fast and smooth

The seating space is very tight, more space is needed specially for tall people.

FRA
JFK
Excellent 10.0

Complementary Drinks. Beautiful Flight Attendants.

Nothing

Wed, 16 May
LHR
YOW
53h 57m
Sat, 19 May
YOW
LHR
40h 10m
C$ 887
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1488 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
AMS
TXL
Excellent 8.3

The sandwiches were simple yet just the right touch, on all four flights.

AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

JFK
AMS
Good 7.6

Two hours delay in the start.

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

CTU
AMS
Excellent 10.0

good service

Wed, 21 Feb
LGW
YOW
17h 15m
Sat, 3 Mar
YOW
LGW
34h 23m
C$ 510
Trip: 11 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3696 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
YSB
YYZ
Good 6.4

The crew was friendly and funny.

The Westjet staff at the Sudbury airport was not exactly friendly. My flight was departing at 6am, and they ask to be there 45 mins before which would have been at 5:15am, I got there at 5:20am and the gate was closed. At 5:25am an employee came to check me in but still advised me to be 45 mins in advance next time. I was only 5 mins late and they weren't even at the gate on my arrival. The security at the airport was rude.

YWG
YYZ
Good 7.6

Quick boarding, good customer service, and friendly staff.

When I booked online it was a little unclear that I would have to pay extra to check a bag. No problem but would make a better customer experience if I had been aware of this

YYZ
LAX
Excellent 10.0

Lots of room- great aircraft

LGA
YYZ
Excellent 10.0

Not applicable

YEG
YMM
Good 7.6

Overall flight and connections were good. Board process was smooth and flight departed and arrived on time. Watch for baggage delays when arriving in Fort McMurray as they can sometimes be excessive. No entertainment provided on the smaller planes but most people have some form of entertainment with them.

Wed, 28 Feb
LGW
YOW
17h 15m
Sun, 4 Mar
YOW
LGW
15h 30m
C$ 510
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3696 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
LGA
YYZ
Excellent 10.0

Not applicable

YWG
YYZ
Good 7.6

Quick boarding, good customer service, and friendly staff.

When I booked online it was a little unclear that I would have to pay extra to check a bag. No problem but would make a better customer experience if I had been aware of this

SJO
YYZ
Excellent 10.0

Very helpful and friendly staff.

Having to leave Costa rica

YYZ
YYC
Mediocre 2.6

I had a very rude and mean flight attendant. I was yelled at and wasn’t offered any beverages or food afterwards. I was ending a phone call with the rcmp and without rudely hanging up on him due to my truck being stolen and being out of the country for 11 days. I was yelled at from 6 rows away in a very arrogant rude tone for the whole plane to hear. I was embarrassed and uncomfortable for the rest of the flight as well as being in a bad mood. Not being offered any beverages or food afterwards also made for a long flight. Was not impressed in the slightest as I fly with west jet every week and have never had such a rude flight attendant.

YYC
YXJ
Excellent 8.4

I liked the flight attendants sense of humour!

Fri, 16 Feb
LGW
YOW
13h 58m
Mon, 26 Feb
YOW
LGW
12h 23m
C$ 511
Trip: 11 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3696 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
YYC
YWG
Excellent 10.0

Friendly staff 8

LGA
YYZ
Excellent 10.0

Not applicable

SJO
YYZ
Excellent 10.0

Very helpful and friendly staff.

Having to leave Costa rica

YYZ
LAX
Excellent 10.0

Lots of room- great aircraft

YYC
YXJ
Excellent 8.4

I liked the flight attendants sense of humour!

Mon, 26 Mar
LGW
YOW
16h 16m
Wed, 2 May
YOW
LGW
16h 00m
C$ 714
Trip: 38 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 16 Feb
LGW
YOW
12h 58m
Fri, 23 Feb
YOW
LGW
21h 20m
C$ 554
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3696 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
YWG
YYZ
Good 7.6

Quick boarding, good customer service, and friendly staff.

When I booked online it was a little unclear that I would have to pay extra to check a bag. No problem but would make a better customer experience if I had been aware of this

YYC
YXJ
Excellent 8.4

I liked the flight attendants sense of humour!

YYC
YWG
Excellent 10.0

Friendly staff 8

YEG
YMM
Good 7.6

Overall flight and connections were good. Board process was smooth and flight departed and arrived on time. Watch for baggage delays when arriving in Fort McMurray as they can sometimes be excessive. No entertainment provided on the smaller planes but most people have some form of entertainment with them.

YVR
YEG
Excellent 8.3

Flight was good, crew was courteous and boarded on time. Cabin space was adequate and the entertainment provided through WestJet’s app is very good.

Tue, 20 Mar
LGW
YOW
11h 15m
Wed, 2 May
YOW
LGW
16h 00m
C$ 718
Trip: 44 days
Overall 0.0 Poor
Based on 0 reviews
Thu, 1 Feb
LGW
YOW
13h 23m
Thu, 8 Feb
YOW
LGW
11h 55m
C$ 558
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3696 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
YVR
YEG
Excellent 9.0

Staff were so friendly and helpful

YYC
YXJ
Excellent 8.4

I liked the flight attendants sense of humour!

YSB
YYZ
Good 6.4

The crew was friendly and funny.

The Westjet staff at the Sudbury airport was not exactly friendly. My flight was departing at 6am, and they ask to be there 45 mins before which would have been at 5:15am, I got there at 5:20am and the gate was closed. At 5:25am an employee came to check me in but still advised me to be 45 mins in advance next time. I was only 5 mins late and they weren't even at the gate on my arrival. The security at the airport was rude.

YYZ
LAX
Excellent 10.0

Lots of room- great aircraft

SJO
YYZ
Excellent 10.0

Very helpful and friendly staff.

Having to leave Costa rica

Thu, 1 Feb
LCY
YOW
35h 59m
Thu, 8 Feb
YOW
LCY
13h 20m
C$ 823
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16888 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
FCO
FRA
Excellent 9.6

Food was just ok

FRA
JFK
Excellent 10.0

Complementary Drinks. Beautiful Flight Attendants.

Nothing

FRA
RUH
Good 7.6

The boarding process was very fast and smooth

The seating space is very tight, more space is needed specially for tall people.

MUC
DEN
Okay 5.0

The flight was transferred to a smaller plane, either because there were few passengers (the first story we heard) or because of mechanical problems on the original craft (the second story). Business class was oversold as a result, and boarding was delayed for an hour while they waited for enough BC passengers to accept 800 euros for the downgrade to economy plus. They repeatedly threatened to cancel the flight rather than raise the offer. Eventually enough knuckled under and we were allowed to leave. Some no doubt missed connections because of this petty brinkmanship. The funny coda is that because the plane was so undersold, anyone in economy that wanted their own row could have one, while economy plus was packed with the embittered and downgraded.

MCO
FRA
Good 7.6

The boarding process was very fast and smooth

The seating space is very tight, more space is needed specially for tall people.

Wed, 21 Mar
LGW
YOW
11h 15m
Wed, 2 May
YOW
LGW
16h 00m
C$ 718
Trip: 43 days
Overall 0.0 Poor
Based on 0 reviews
Thu, 30 Nov
LGW
YOW
15h 00m
Thu, 7 Dec
YOW
LGW
34h 35m
C$ 561
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3696 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
LGA
YYZ
Excellent 10.0

Not applicable

YVR
YEG
Excellent 9.0

Staff were so friendly and helpful

SJO
YYZ
Excellent 10.0

Very helpful and friendly staff.

Having to leave Costa rica

YYZ
YYC
Mediocre 2.6

I had a very rude and mean flight attendant. I was yelled at and wasn’t offered any beverages or food afterwards. I was ending a phone call with the rcmp and without rudely hanging up on him due to my truck being stolen and being out of the country for 11 days. I was yelled at from 6 rows away in a very arrogant rude tone for the whole plane to hear. I was embarrassed and uncomfortable for the rest of the flight as well as being in a bad mood. Not being offered any beverages or food afterwards also made for a long flight. Was not impressed in the slightest as I fly with west jet every week and have never had such a rude flight attendant.

YSB
YYZ
Good 6.4

The crew was friendly and funny.

The Westjet staff at the Sudbury airport was not exactly friendly. My flight was departing at 6am, and they ask to be there 45 mins before which would have been at 5:15am, I got there at 5:20am and the gate was closed. At 5:25am an employee came to check me in but still advised me to be 45 mins in advance next time. I was only 5 mins late and they weren't even at the gate on my arrival. The security at the airport was rude.

Fri, 16 Feb
LCY
YOW
35h 59m
Mon, 26 Feb
YOW
LCY
21h 35m
C$ 828
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16888 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
FRA
RUH
Good 7.6

The boarding process was very fast and smooth

The seating space is very tight, more space is needed specially for tall people.

FRA
ORD
Excellent 8.6

We liked that no one was sitting behind us.

Food wasn’t great

FRA
JFK
Excellent 10.0

Complementary Drinks. Beautiful Flight Attendants.

Nothing

GIG
FRA
Okay 5.6

flight crew hit my chair all the time with the troller. Bought the places with bigger space on the legs, that was true, but was dissapointed with the type of chair that is totally closed at the sides, with no scape room for the legs laterally.

MUC
EWR
Excellent 10.0

A bit of a delay but annoucements and alerts were perfect! Felt well informed, every step of the way. Crew was pleasant and efficient. Smoothe flight! Will be a pleasure to fly with you again!

Thu, 3 May
LGW
YOW
26h 51m
Sun, 13 May
YOW
LGW
17h 00m
C$ 742
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 12 Jan
LGW
YOW
11h 52m
Tue, 20 Feb
YOW
LGW
21h 20m
C$ 570
Trip: 40 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3696 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
BZE
YYZ
Okay 5.0

Good snacks $

Title says it.

YVR
YEG
Excellent 8.3

Flight was good, crew was courteous and boarded on time. Cabin space was adequate and the entertainment provided through WestJet’s app is very good.

YYZ
LAX
Excellent 10.0

Lots of room- great aircraft

YVR
YEG
Excellent 9.0

Staff were so friendly and helpful

YEG
YMM
Good 7.6

Overall flight and connections were good. Board process was smooth and flight departed and arrived on time. Watch for baggage delays when arriving in Fort McMurray as they can sometimes be excessive. No entertainment provided on the smaller planes but most people have some form of entertainment with them.

Thu, 3 May
LHR
YOW
10h 40m
Sun, 13 May
YOW
LHR
8h 05m
C$ 842
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16888 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
MUC
LAX
Excellent 9.0

I didn't like the food

FRA
JFK
Excellent 10.0

Complementary Drinks. Beautiful Flight Attendants.

Nothing

FRA
RUH
Good 7.6

The boarding process was very fast and smooth

The seating space is very tight, more space is needed specially for tall people.

MCO
FRA
Good 7.6

The boarding process was very fast and smooth

The seating space is very tight, more space is needed specially for tall people.

CDG
FRA
Excellent 10.0

The crew was kind and helpful and the movie selections, food, and seats were all great.

Fri, 25 May
LHR
YOW
12h 40m
Thu, 7 Jun
YOW
LHR
18h 45m
C$ 753
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Sat, 10 Feb
LGW
YOW
11h 23m
Sat, 17 Feb
YOW
LGW
34h 30m
C$ 572
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3696 reviews
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
7.2
Food
7.3
YYZ
LAX
Excellent 10.0

Lots of room- great aircraft

YEG
YMM
Good 7.6

Overall flight and connections were good. Board process was smooth and flight departed and arrived on time. Watch for baggage delays when arriving in Fort McMurray as they can sometimes be excessive. No entertainment provided on the smaller planes but most people have some form of entertainment with them.

YSB
YYZ
Good 6.4

The crew was friendly and funny.

The Westjet staff at the Sudbury airport was not exactly friendly. My flight was departing at 6am, and they ask to be there 45 mins before which would have been at 5:15am, I got there at 5:20am and the gate was closed. At 5:25am an employee came to check me in but still advised me to be 45 mins in advance next time. I was only 5 mins late and they weren't even at the gate on my arrival. The security at the airport was rude.

YWG
YYZ
Good 7.6

Quick boarding, good customer service, and friendly staff.

When I booked online it was a little unclear that I would have to pay extra to check a bag. No problem but would make a better customer experience if I had been aware of this

BZE
YYZ
Okay 5.0

Good snacks $

Title says it.

Show more results
*
Prices are per person, are for e–tickets and include all taxes & fees in CAD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
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.