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

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London to Ottawa Flight Information

Avg. Flight Duration 7h 25m
Flights Arrive in Ottawa
Flights Depart from London
Flight Price C$ 679
Distance 5,366 km
Airlines KLM, Lufthansa, SWISS, Air Canada, WestJet

Good to Know

Low Season:
May
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
14%
expected price increase
Average price:
C$ 753
(avg. price over the last 2 weeks)
Good Deal:
C$ 687
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$ 687 or less.
The cheapest flight from London to Ottawa was found, on average, 73 days before departure.
Book at least 3 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 4% 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 221 (nonstop) flights between London and Ottawa per week, averaging 31 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 KLM (C$ 679), Lufthansa (C$ 702) and SWISS (C$ 735).
Which airlines fly most frequently between London and Ottawa?
MEA (3 times daily), Aegean Airlines (2 times daily), Air Canada (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, Thursday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Ottawa back to London, the best deals are generally found on Monday, with Friday being the most expensive.

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

Airports
Origin
London
C$ 679
only
C$ 679
C$ 728
only
C$ 728
C$ 833
only
C$ 833
C$ 892
only
C$ 892
Destination
Ottawa
C$ 679
only
C$ 679
Thu, 1 Nov
LHR
London Heathrow
YOW
Ottawa
16h 31m
Wed, 7 Nov
YOW
Ottawa
LHR
London Heathrow
15h 20m
C$ 679
Trip: 7 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2,253 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
JFK
AMS
Excellent 10.0

The attendants took great care of us. Super smooth flight.

SFO
AMS
Good 6.3

The boarding was easy and you didn't have to wait inline for that long

KLM needs to upgrade the entertainment. It was very hard to see the images on the screen. The planes that KLM uses are old and they sure need to be upgraded.

BCN
AMS
Excellent 9.6

Boarding was confusing and disorganized

ATL
AMS
Mediocre 2.0

Flight was cancelled.

AMS
BCN
Mediocre 3.6

Nothing good to say about this flight. The plane was old with no entertainment. The sits where very compact and not comfortable at all. The food was a sweet bread and water. The flight attendants were rushing and will take a while if you needed anything. I felt like I was taking a bus with graffiti all over the place.

Wed, 31 Oct
LHR
London Heathrow
YOW
Ottawa
7h 50m
Tue, 6 Nov
YOW
Ottawa
LHR
London Heathrow
7h 00m
C$ 702
Trip: 7 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 23,009 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
SEA
FRA
Excellent 10.0

Food excellent. Cabin crew friendly and professional. Also very attentive.

Cabin got warm at the end of flight. And because I am usually cold, I can only imagine how warm others felt

ATL
FRA
Okay 4.0

Crew was very nice and attent ive

Delay cause sings uS to miSs oUr fliGh? ENT.ert.ainmrt wasn't good eitHer and way to cramped even for coach on that long of a fligh

GVA
FRA
Excellent 8.3

The Crew was very helpful, they were always around and offering all kind of help.

The food was very cheap, we had no choice for a better offer. We were hungry and had to eat.... The seats were changed at the last minute, we were very upset!!! We did our confirmation on line and get our seats assigned. When we got to the airport we were surprised that they changed them.

ATH
FRA
Okay 5.3

Crew and Food

DELAYED BOARDING, OVER CROWDED TOO TIED, VERY HARD TO GO TO TOILET OR STAND

LHR
FRA
Excellent 8.6

Very explanatory clear and responsive. There was a short delay they kept us informed clearly and responsibly. Excellent flight and superb performance. Very polite and helpful.

Fri, 7 Dec
LCY
London City Airport
YOW
Ottawa
29h 27m
Sun, 9 Dec
YOW
Ottawa
LCY
London City Airport
19h 15m
C$ 735
Trip: 3 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 7,112 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
VCE
ZRH
Excellent 8.0

Swiss took care of arranging hotel for us and substitution flight.

Missed connection flight because of delay

GVA
JFK
Excellent 10.0

The crew was so friendly and professional, on top of the nice plane condition, which made the trip very pleasant!

The food standard seemed to be lowered a little bit, but still very well prepared.

ZRH
MAD
Excellent 9.0

The service

No entertainment

CDG
ZRH
Good 6.0

Spacious seats

Bag check process

ZRH
ORD
Okay 5.0

The food that I did get was decent There was wine A couple decent movies were available

They were basically out of food almost everytime they got to me. The Arm rest only went half way up They didnt pass out water as much as they usually do

Sun, 24 Mar
LHR
London Heathrow
YOW
Ottawa
7h 50m
Sat, 30 Mar
YOW
Ottawa
LHR
London Heathrow
21h 00m
C$ 791
Trip: 7 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 21 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
LHR
YOW
Excellent 10.0

plane wasn't crowded. flight was on time. friendly staff

didn't have an option for gluten free meal

LHR
YOW
Good 7.0

Seats are always too close to the ones in front , crushing knees.

LHR
YOW
Excellent 10.0

Air Canada is fantastic. Will never use air india.

I liked everything about AirCanada and nothing about Airindia.

LHR
YOW
Excellent 10.0

Airbus 380

LHR
YOW
Good 6.0

The pilot and the crew are very proffesional.

Tue, 18 Dec
LHR
London Heathrow
YOW
Ottawa
19h 56m
Tue, 25 Dec
YOW
Ottawa
LHR
London Heathrow
16h 26m
C$ 833
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sat, 22 Sep
LGW
London Gatwick
YOW
Ottawa
14h 15m
Tue, 25 Sep
YOW
Ottawa
LGW
London Gatwick
17h 50m
C$ 1214
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 6,873 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.1
Food
7.2
YHZ
YYC
Excellent 10.0

We we’re late getting in from Halifax because of head winds. Walked from one plane to another and luggage arrived with us.

Nothing

YYJ
YYC
Excellent 8.0

Boarding etc was all fine.

YYC
CUN
Okay 4.8

There wasn't any food to purchase other than a few snacks. That's just not good enough for a 6 hour flight, Really poor.

YVR
HNL
Excellent 9.6

The crew were so kind and friendly. Kept the spirit upbeat and served us well. The bulkhead was roomy enough for carry on bags, so they weren’t taken away from us to be checked, which happened to us on the same flight last year with another Canadian airline.

I do miss personal screens in seats, although I understand it’s not really necessary anymore. If there were a ledge or place in seats to accommodate personal devices for better viewing, that would b amazing. No more neck cricks.

FLL
YYZ
Excellent 10.0

Everything. Smooth flying from start to finish

Thu, 10 Jan
LCY
London City Airport
YOW
Ottawa
19h 18m
Thu, 17 Jan
YOW
Ottawa
LCY
London City Airport
12h 45m
C$ 728
Trip: 8 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2,253 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
AMS
JFK
Good 6.6

She was cheerful and genuine. I have dietary restrictions but was unable to preorder a meal. She went out of her way to find an available meal for me. I also saw her bring other passengers extra snacks and drinks.

Cramped seating.

AMS
BCN
Mediocre 3.6

Nothing good to say about this flight. The plane was old with no entertainment. The sits where very compact and not comfortable at all. The food was a sweet bread and water. The flight attendants were rushing and will take a while if you needed anything. I felt like I was taking a bus with graffiti all over the place.

BCN
AMS
Excellent 9.6

Boarding was confusing and disorganized

JFK
AMS
Excellent 10.0

The attendants took great care of us. Super smooth flight.

AMS
IAD
Excellent 8.6

Food and staff behaviour

Entertainment

Mon, 5 Nov
LCY
London City Airport
YOW
Ottawa
14h 09m
Mon, 19 Nov
YOW
Ottawa
LCY
London City Airport
13h 30m
C$ 729
Trip: 15 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 23,009 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
GVA
FRA
Excellent 8.3

The Crew was very helpful, they were always around and offering all kind of help.

The food was very cheap, we had no choice for a better offer. We were hungry and had to eat.... The seats were changed at the last minute, we were very upset!!! We did our confirmation on line and get our seats assigned. When we got to the airport we were surprised that they changed them.

FRA
MXP
Mediocre 2.6

Same as above same as a bove

Same as above

FRA
ORD
Excellent 8.6

CREW COMFORT FOOD

BEING DELAYED OVER AN HOUR AND NO CLEAR EXPLANATION GIVEN FOR THAT

MUC
DEN
Excellent 10.0

There attention to detail, client comfort, friendliness, food, all was a ten out of ten. Thank you for the lovely experience.

BOS
MUC
Excellent 8.0

On time with good service.

Food - barely edible as usual. Economy seats seem to be getting tighter and with little leg room.

Fri, 23 Nov
LCY
London City Airport
YOW
Ottawa
15h 12m
Fri, 30 Nov
YOW
Ottawa
LCY
London City Airport
18h 30m
C$ 738
Trip: 8 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 7,112 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
MIA
ZRH
Good 6.3

Service and food were good considering it was "plane food". No delay whatsoever.

Black box under the front seat. No room for legs. Seat blocked in lower position, impossible to make it stay in upper position. Entertainment wasn't working good: extremely laggy when it was working ... Seats are way too short. You got the neck support into the upper back ... And I am only 1.80m. Overall, I am done with Swiss until they upgrade their planes. Wifi was 99usd for 220 mo ... what a joke. A 20+yo plane for a such reputated company. There was still the ashtrays inside the restrooms.

ZRH
MAD
Excellent 9.0

The service

No entertainment

ZRH
SFO
Excellent 9.6

The food and beverage service in Coach was great as usual ... The new 777 ER 300 was really a nice improvement over the aging Airbus planes previously flown Entertainment systems in coach were top notch with great entertainment choices to view ...

3 4 3 seating results in very narrow isles ... during the longer flights on the 777 the isle seated passengers lean into the isles making going to and from the restrooms in ( coach) a bit of an obstacle course

ZRH
TLV
Excellent 10.0

TV screens and movies. Food was great.

VCE
ZRH
Excellent 8.0

Swiss took care of arranging hotel for us and substitution flight.

Missed connection flight because of delay

Sun, 13 Jan
LHR
London Heathrow
YOW
Ottawa
7h 50m
Mon, 21 Jan
YOW
Ottawa
LHR
London Heathrow
7h 00m
C$ 745
Trip: 9 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 23,009 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
LHR
FRA
Excellent 8.6

Very explanatory clear and responsive. There was a short delay they kept us informed clearly and responsibly. Excellent flight and superb performance. Very polite and helpful.

BOS
MUC
Excellent 8.0

On time with good service.

Food - barely edible as usual. Economy seats seem to be getting tighter and with little leg room.

FRA
ORD
Excellent 8.6

CREW COMFORT FOOD

BEING DELAYED OVER AN HOUR AND NO CLEAR EXPLANATION GIVEN FOR THAT

FRA
TLV
Excellent 8.6

Same crew. Really nice flight smooth and professional

GVA
FRA
Excellent 8.3

The Crew was very helpful, they were always around and offering all kind of help.

The food was very cheap, we had no choice for a better offer. We were hungry and had to eat.... The seats were changed at the last minute, we were very upset!!! We did our confirmation on line and get our seats assigned. When we got to the airport we were surprised that they changed them.

Sun, 24 Mar
LGW
London Gatwick
YOW
Ottawa
19h 58m
Sat, 30 Mar
YOW
Ottawa
LGW
London Gatwick
12h 25m
C$ 833
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 23 Nov
LHR
London Heathrow
YOW
Ottawa
12h 52m
Fri, 30 Nov
YOW
Ottawa
LHR
London Heathrow
7h 00m
C$ 751
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 23,009 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
MUC
DEN
Excellent 10.0

There attention to detail, client comfort, friendliness, food, all was a ten out of ten. Thank you for the lovely experience.

CDG
FRA
Excellent 8.6

Crew, boarding, seat

Paris airport is extremely passenger unfriendly. Better to connect somewhere else

LHR
FRA
Excellent 8.6

Very explanatory clear and responsive. There was a short delay they kept us informed clearly and responsibly. Excellent flight and superb performance. Very polite and helpful.

FRA
ORD
Excellent 8.6

CREW COMFORT FOOD

BEING DELAYED OVER AN HOUR AND NO CLEAR EXPLANATION GIVEN FOR THAT

ATL
FRA
Okay 4.0

Crew was very nice and attent ive

Delay cause sings uS to miSs oUr fliGh? ENT.ert.ainmrt wasn't good eitHer and way to cramped even for coach on that long of a fligh

Wed, 24 Oct
LCY
London City Airport
YOW
Ottawa
29h 22m
Sun, 28 Oct
YOW
Ottawa
LCY
London City Airport
17h 15m
C$ 875
Trip: 5 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 7,112 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
VCE
ZRH
Excellent 8.0

Swiss took care of arranging hotel for us and substitution flight.

Missed connection flight because of delay

ZRH
TLV
Excellent 10.0

TV screens and movies. Food was great.

CDG
ZRH
Good 6.0

Spacious seats

Bag check process

ZRH
MAD
Excellent 9.0

The service

No entertainment

ZRH
SFO
Excellent 9.6

The food and beverage service in Coach was great as usual ... The new 777 ER 300 was really a nice improvement over the aging Airbus planes previously flown Entertainment systems in coach were top notch with great entertainment choices to view ...

3 4 3 seating results in very narrow isles ... during the longer flights on the 777 the isle seated passengers lean into the isles making going to and from the restrooms in ( coach) a bit of an obstacle course

Wed, 9 Jan
LGW
London Gatwick
YOW
Ottawa
16h 18m
Tue, 15 Jan
YOW
Ottawa
LGW
London Gatwick
10h 25m
C$ 887
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 12 Oct
STN
London Stansted
YOW
Ottawa
19h 23m
Fri, 19 Oct
YOW
Ottawa
STN
London Stansted
26h 30m
C$ 892
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, 7 Oct
LGW
London Gatwick
YOW
Ottawa
34h 18m
Mon, 15 Oct
YOW
Ottawa
LGW
London Gatwick
10h 20m
C$ 940
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Sun, 24 Mar
STN
London Stansted
YOW
Ottawa
20h 38m
Sat, 30 Mar
YOW
Ottawa
STN
London Stansted
17h 00m
C$ 1030
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 28 Sep
LHR
London Heathrow
YOW
Ottawa
7h 35m
Fri, 5 Oct
YOW
Ottawa
LHR
London Heathrow
8h 10m
C$ 1175
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 23,009 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
FRA
ORD
Excellent 8.6

CREW COMFORT FOOD

BEING DELAYED OVER AN HOUR AND NO CLEAR EXPLANATION GIVEN FOR THAT

BOS
FRA
Good 7.6

Great service and timeliness.

I wasn’t offered earphone headset so I could not enjoy entertainment.

FRA
MXP
Mediocre 2.6

Same as above same as a bove

Same as above

ATH
FRA
Okay 5.3

Crew and Food

DELAYED BOARDING, OVER CROWDED TOO TIED, VERY HARD TO GO TO TOILET OR STAND

CDG
FRA
Excellent 8.6

Crew, boarding, seat

Paris airport is extremely passenger unfriendly. Better to connect somewhere else

Tue, 8 Jan
STN
London Stansted
YOW
Ottawa
11h 48m
Tue, 15 Jan
YOW
Ottawa
STN
London Stansted
14h 00m
C$ 1048
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, 16 Dec
STN
London Stansted
YOW
Ottawa
34h 57m
Sun, 23 Dec
YOW
Ottawa
STN
London Stansted
13h 45m
C$ 1068
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
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