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

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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$ 1051
(avg. price over the last 2 weeks)
Good Deal:
C$ 860
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$ 859 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 21% 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

FAQs for Booking London to Ottawa Flights

How long does a flight from London to Ottawa take?
An average nonstop flight takes 7h 35m, covering a distance of 5366 km.
How many flights are there between London and Ottawa?
There are 166 (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 Multiple Airlines (C$ 749), Lufthansa (C$ 821) and SWISS (C$ 900).
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, Sunday 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 Wednesday being the most expensive.

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

Airports
Origin
London
C$ 749
only
C$ 749
C$ 892
only
C$ 892
C$ 1034
only
C$ 1034
Destination
Ottawa
C$ 749
only
C$ 749
Sun, 1 Apr
LHR
YOW
7h 35m
Wed, 18 Apr
YOW
LHR
10h 15m
C$ 749
Trip: 18 days
Overall 0.0 Poor
Based on 0 reviews
Tue, 12 Jun
LHR
YOW
7h 35m
Sat, 23 Jun
YOW
LHR
23h 00m
C$ 821
Trip: 12 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
EWR
DUS
Mediocre 3.6

The staff was good to me when I became ill on the flight with a migraine.

When I paid for my seat in advance it said I had an exit row, but when I got on the flight it was not. The food was also horrible.

MAN
FRA
Excellent 10.0

The food between Frankfort to Istanbulwas lovely and the staff nicely

FRA
SFO
Okay 4.0

staff

major delay, poor communication andaccommodation considering delay

NBO
FRA
Excellent 9.3

There was plenty of room, great staff, no worries whatsoever.

The food on Lufthansa has definitely slipped since the last time I flew them a couple of years ago. The main courses are just plain bad. Everything else is good

DME
FRA
Excellent 10.0

everything

Mon, 30 Apr
LCY
YOW
15h 16m
Wed, 9 May
YOW
LCY
22h 35m
C$ 900
Trip: 10 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 5990 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
ZRH
ATH
Excellent 10.0

It was a 2 hour 40 minute flight. No entertainment.

JFK
ZRH
Excellent 9.6

Easy, quiet boarding and flight, USB port available, audio and sound were working, nice movie selection. Friendly and helpful crew, assisted with cough crisis

Seats from JFK to Zurich were a little bit squeezed.

BOS
ZRH
Excellent 9.0

Economy very tight but whose isn’t. Best selection of movies relative to the competition.

ZRH
BOS
Okay 4.6

We (parents) were business class, but our two kids in coach, yet Swiss doesn’t allow “guests” in the lounge. Hmmm. What a bunch of BS.

BCN
ZRH
Excellent 10.0

100% the best flight experience I've ever had flying. Wish I flew to Europe more so I could fly with Swiss more often. Thanks!

Tue, 3 Jul
LGW
YOW
14h 08m
Fri, 13 Jul
YOW
LGW
10h 16m
C$ 1034
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 5224 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.1
Food
7.2
PSP
YYZ
Good 7.2

i know i am tall and above avg wt. but not enough leg room for anyone over five foot six inches.

YYZ
YEG
Good 7.3

They were quick with the boarding and helped me board the plane first with my pet so that it is easier for me. I really appreciated that.

The seats are not comfortable. I spent the whole flight moving and trying to find a confortable way to sit. I also miss the time where we had meals in the plane. However, I don't mind paying for my meal but I wish there were more vegetarian options than just the hummus.

YYC
YEG
Excellent 10.0

Smiling staff. Very helpful

No complaints

YWG
YYC
Good 7.6

Everyone was very nice

It was cold on the plane!

YUL
YYZ
Good 7.6

I love flying in a smaller plane. They are usually not full in the morning and so it gave me a lot of space to relax and enjoy the flight from montreal to toronto. The crew was really nice and smilling and they made sure that my pet and I had everything we needed.

The seats are pretty thin and uncomfortable. There is no wifi or television on board.

Tue, 15 May
LCY
YOW
14h 34m
Tue, 22 May
YOW
LCY
21h 00m
C$ 892
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
CAI
MUC
Excellent 8.3

Keeping in mind it was an economy class, I thought the flight was fine. Decent food. I would have preferred some with a heavy cheese sauce. I had gotten sick in Egypt and I felt lousy (dizziness and headache). Despite my physical condition I thought the flight was okay. Crew were professional and airplane was clean. Beer to drink. Other than the fact I was sick, I enjoyed the flight.

The dinner option was okay. I felt the heavy cheese sauce pasta was a bit too rich. Other components to the dinner was fine.

MAN
FRA
Excellent 10.0

The food between Frankfort to Istanbulwas lovely and the staff nicely

FRA
JFK
Excellent 10.0

WiFi access

MUC
SFO
Excellent 8.3

Airplane was clean and comfortable for economy class.

Because I felt sick I would probably prefer to pay a little more and upgrade to a better seat if the option was available.

DME
FRA
Excellent 10.0

everything

Mon, 26 Mar
LCY
YOW
15h 16m
Wed, 4 Apr
YOW
LCY
23h 35m
C$ 921
Trip: 10 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 5990 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
ZRH
ATH
Excellent 10.0

It was a 2 hour 40 minute flight. No entertainment.

BOS
ZRH
Excellent 9.6

We like being able to check our ski equipment without extra charge. Service is consistently professional and courteous.

Being charged for seat selection. The late hour of departure for the Boston to Zurich flight.

BCN
ZRH
Excellent 10.0

100% the best flight experience I've ever had flying. Wish I flew to Europe more so I could fly with Swiss more often. Thanks!

ZRH
BOS
Okay 4.6

We (parents) were business class, but our two kids in coach, yet Swiss doesn’t allow “guests” in the lounge. Hmmm. What a bunch of BS.

DAR
ZRH
Excellent 8.4

it was the same plane, just a different crew so all remains the same

Tue, 12 Jun
LCY
YOW
11h 30m
Mon, 2 Jul
YOW
LCY
14h 30m
C$ 945
Trip: 21 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
DME
FRA
Excellent 10.0

everything

FRA
SFO
Okay 4.0

staff

major delay, poor communication andaccommodation considering delay

DUB
FRA
Excellent 10.0

One of flight attendants lent me her phone charger to charge my phone which absolutely saved and they were just generally very pleasant and easy to interact with.

FRA
JFK
Excellent 10.0

WiFi access

LOS
FRA
Excellent 10.0

WiFi access, usb Port

Tue, 3 Jul
LCY
YOW
16h 00m
Tue, 17 Jul
YOW
LCY
14h 00m
C$ 959
Trip: 15 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 5990 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
DAR
ZRH
Excellent 8.4

it was the same plane, just a different crew so all remains the same

BOS
ZRH
Excellent 9.0

Economy very tight but whose isn’t. Best selection of movies relative to the competition.

ZRH
BOS
Okay 5.3

Small screens. Hard to use

ZRH
BOS
Okay 4.6

We (parents) were business class, but our two kids in coach, yet Swiss doesn’t allow “guests” in the lounge. Hmmm. What a bunch of BS.

BOS
ZRH
Excellent 9.6

We like being able to check our ski equipment without extra charge. Service is consistently professional and courteous.

Being charged for seat selection. The late hour of departure for the Boston to Zurich flight.

Mon, 16 Jul
LGW
YOW
10h 52m
Mon, 30 Jul
YOW
LGW
11h 55m
C$ 1072
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 11 Jun
LCY
YOW
11h 30m
Sun, 24 Jun
YOW
LCY
16h 50m
C$ 1002
Trip: 14 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
LOS
FRA
Excellent 10.0

WiFi access, usb Port

NBO
FRA
Excellent 9.3

There was plenty of room, great staff, no worries whatsoever.

The food on Lufthansa has definitely slipped since the last time I flew them a couple of years ago. The main courses are just plain bad. Everything else is good

DFW
FRA
Good 6.0

Very helpful crew, great service. Will fly again.

Almost missed connecting flight had to run hard to make it. Airline did nothing to assure us that we will make it to next flight. Was very stressful, can do better.

MAN
FRA
Excellent 10.0

The food between Frankfort to Istanbulwas lovely and the staff nicely

FRA
JFK
Excellent 10.0

WiFi access

Sun, 1 Jul
LHR
YOW
25h 10m
Tue, 10 Jul
YOW
LHR
16h 50m
C$ 1031
Trip: 10 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
EWR
DUS
Mediocre 3.6

The staff was good to me when I became ill on the flight with a migraine.

When I paid for my seat in advance it said I had an exit row, but when I got on the flight it was not. The food was also horrible.

DFW
FRA
Good 6.0

Very helpful crew, great service. Will fly again.

Almost missed connecting flight had to run hard to make it. Airline did nothing to assure us that we will make it to next flight. Was very stressful, can do better.

DUB
FRA
Excellent 10.0

One of flight attendants lent me her phone charger to charge my phone which absolutely saved and they were just generally very pleasant and easy to interact with.

FRA
SFO
Okay 4.0

staff

major delay, poor communication andaccommodation considering delay

LHR
MUC
Excellent 9.0

The crew were very helpful and friendly

The flight was delayed

Mon, 2 Jul
LCY
YOW
12h 55m
Thu, 12 Jul
YOW
LCY
16h 50m
C$ 1054
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
LOS
FRA
Excellent 10.0

WiFi access, usb Port

EWR
DUS
Mediocre 3.6

The staff was good to me when I became ill on the flight with a migraine.

When I paid for my seat in advance it said I had an exit row, but when I got on the flight it was not. The food was also horrible.

FRA
JFK
Excellent 10.0

WiFi access

LHR
MUC
Excellent 9.0

The crew were very helpful and friendly

The flight was delayed

CAI
MUC
Excellent 8.3

Keeping in mind it was an economy class, I thought the flight was fine. Decent food. I would have preferred some with a heavy cheese sauce. I had gotten sick in Egypt and I felt lousy (dizziness and headache). Despite my physical condition I thought the flight was okay. Crew were professional and airplane was clean. Beer to drink. Other than the fact I was sick, I enjoyed the flight.

The dinner option was okay. I felt the heavy cheese sauce pasta was a bit too rich. Other components to the dinner was fine.

Wed, 15 Aug
LCY
YOW
18h 55m
Wed, 29 Aug
YOW
LCY
19h 20m
C$ 1479
Trip: 15 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 5990 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
EWR
ZRH
Excellent 8.6

Everything except the seats.

BOS
ZRH
Excellent 9.6

We like being able to check our ski equipment without extra charge. Service is consistently professional and courteous.

Being charged for seat selection. The late hour of departure for the Boston to Zurich flight.

JFK
ZRH
Excellent 9.6

Easy, quiet boarding and flight, USB port available, audio and sound were working, nice movie selection. Friendly and helpful crew, assisted with cough crisis

Seats from JFK to Zurich were a little bit squeezed.

ZRH
BOS
Okay 4.6

We (parents) were business class, but our two kids in coach, yet Swiss doesn’t allow “guests” in the lounge. Hmmm. What a bunch of BS.

NBO
DAR
Excellent 8.3

movies choices were good, the crew was awesome, boarding was meh, but for NBO not bad

paid extra for the seats with more leg room and the amount of leg room I had was concerning in terms of what a regular seat may have looked like. I'm not even that tall, but when the woman in front of me reclined, I was pinned in my seat. Luckily I'm double jointed.

Wed, 15 Aug
LCY
YOW
18h 55m
Wed, 29 Aug
YOW
LCY
16h 55m
C$ 1481
Trip: 15 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 5990 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
ZRH
BOS
Okay 5.3

Small screens. Hard to use

BOS
ZRH
Excellent 9.6

We like being able to check our ski equipment without extra charge. Service is consistently professional and courteous.

Being charged for seat selection. The late hour of departure for the Boston to Zurich flight.

ZRH
EWR
Excellent 8.0

Cabin crew were friendly, efficient, courteous Refreshments generous and excellent. Good movies.

Rather than boarding economy passengers by row number, there is a free-for-all at the gate, and tedious blockage in the aisles as passengers wait for others to place carry-on luggage. More leg-room than United, but still a bit crowded for tall people. VERY BAD DESIGN of arm-rests, which do not go up all the way into the seat but instead jut out at an angle.

ZRH
JFK
Excellent 9.3

Crew was always ready to help. It was a very smooth flight.

I wish we could start watching the movies earlier and wish there was more selection for good movies. Flight was delayed but we knew that. I prefer that it‘s safe.

BOS
ZRH
Excellent 9.0

Economy very tight but whose isn’t. Best selection of movies relative to the competition.

Show more results

London to Ottawa Flight Information

Flights Arrive in Ottawa
Flights Depart from London
Flight Price C$ 749
Distance 5366 km
Airlines Lufthansa, SWISS, WestJet
*
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.

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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.