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

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London to Ottawa Flight Information

Flights Arrive in Ottawa
Flights Depart from London
Flight Price C$ 809
Distance 5,366 km
Airlines KLM, SWISS, Lufthansa

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$ 1122
(avg. price over the last 2 weeks)
Good Deal:
C$ 923
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$ 923 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 18% 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 14h 23m, covering a distance of 5366 km.
How many flights are there between London and Ottawa?
There are 60 (nonstop) flights between London and Ottawa per week, averaging 8 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$ 809), Multiple Airlines (C$ 895) and SWISS (C$ 1008).
Which airlines fly most frequently between London and Ottawa?
Air Canada (0 times daily), Austrian Airlines (0 times daily), SriLankan (0 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, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Ottawa back to London, the best deals are generally found on Saturday, with Monday being the most expensive.
Which airports will I be using when flying from London to Ottawa?
When flying out of London you will be using one of these airports: London Stansted, London City, London Gatwick or London Heathrow. You will be landing at Ottawa, also known as Ottawa Airport.

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

Airports
Origin
London
C$ 809
only
C$ 809
C$ 859
only
C$ 859
C$ 1225
only
C$ 1225
C$ 895
only
C$ 895
Destination
Ottawa
C$ 809
only
C$ 809
Tue, 29 Jan
LHR
London Heathrow
YOW
Ottawa
14h 23m
Mon, 4 Feb
YOW
Ottawa
LHR
London Heathrow
16h 00m
C$ 809
Trip: 7 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2,552 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
TLV
AMS
Mediocre 2.6

Cons: Landlords gave an unpleasant service! Which continued with late of 50min of the flight, they didn’t do anything to help/ to provide the passengers the answers. The food was cold It was comfort place to sit. Bad experience with KLM

PRG
AMS
Mediocre 3.2

Pros: Nothing to mention

Cons: Crew was rude when I asked if there was a vegetarian option for the snack. I did request special meals for the trip. Even if they did not have a vegetarian option, they don't need to be rude!! Boarding was ridiculous. we were supposed to form a line and wait. Would have been a lot better if they boarded by seat numbers. Also they made me check in my fairly small and light carry on bag resulting in its contents arriving broken!

HEL
AMS
Excellent 8.6

Pros: The crew was really friendly.

Cons: There was a Force Majeur delay in Helsinki due to wings freezing that caused 20 minute delay to Amsterdam and made the interchange stressful.

BOM
AMS
Mediocre 2.0

Cons: Poor food, flight attend and finally baggage missing. Overall experience is extremely bad.

AMS
ATL
Excellent 10.0

Pros: Nice crew pilot food and beverage

Cons: No wifi

Sat, 19 Jan
STN
London Stansted
YOW
Ottawa
18h 42m
Sat, 26 Jan
YOW
Ottawa
STN
London Stansted
24h 45m
C$ 895
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, 5 Jun
LHR
London Heathrow
YOW
Ottawa
15h 04m
Thu, 27 Jun
YOW
Ottawa
LHR
London Heathrow
6h 45m
C$ 1008
Trip: 23 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 7,491 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
BEG
ZRH
Excellent 8.3

Cons: Having no entertainment in the flight

HKG
ZRH
Mediocre 2.0

Cons: they cancelled letting me fly

ZRH
DXB
Excellent 8.0

Cons: Pleasant overall experience

BOS
ZRH
Good 6.0

Pros: Flight was on time. Friendly crew and professional.

Cons: I ordered vegan food, no meat , dairy free. On my trip from Boston to Zurich I received vegan food. On my way fro Zurich to Belgrade I was told” sorry we do not have any vegan food, “ Also, I was charged $60 for my check in one bag,. Not expectable.

ZRH
ORD
Excellent 9.0

Cons: Seats are too cramped for an international flight.

Wed, 5 Jun
LCY
London City
YOW
Ottawa
16h 22m
Thu, 27 Jun
YOW
Ottawa
LCY
London City
21h 00m
C$ 1024
Trip: 23 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 23,898 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
FRA
CAI
Excellent 10.0

Pros: On the airline website the price of the ticket was $3000 and I bought it for $750 on Kayak, I expected delays, cancellations or something to go wrong and justify that price drop. Nothing of that sort happened! It was a comfortable and on time trip with no problems!

Cons: Nothing!

FRA
SEA
Excellent 9.3

Pros: I like the cree

Cons: Nothing

MUC
JFK
Excellent 9.3

Pros: everything was great. Crew was very nice. good service. good food. Even bathrooms were located in the basement separately, nice and bigger than usual airline bathrooms.

Cons: my TV screen didn't work. Long 9.5hr trip without entertainment.

ADD
FRA
Excellent 9.0

Pros: Arrival on time .

Cons: Changing birding multiple times.

TXL
MUC
Mediocre 2.0

Cons: Airline canceled my flight with out refund or giving other options. Never will use them again.

Mon, 11 Mar
LHR
London Heathrow
YOW
Ottawa
19h 25m
Thu, 21 Mar
YOW
Ottawa
LHR
London Heathrow
17h 40m
C$ 827
Trip: 11 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2,552 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
SFO
AMS
Excellent 10.0

Pros: Last year I flew Lufthansa which was my worst experience flying ever. I thought the new standard was so low I would never fly to Europe again. I had heard KLM was good but I felt this was as good as could be expected actually much better. The food was even good.

Cons: I would have to dream something up.

AMS
SIN
Good 7.6

Cons: Trouble checking in regarding a visa issue?.. no other trouble at the other airports..

HEL
AMS
Excellent 8.6

Pros: The crew was really friendly.

Cons: There was a Force Majeur delay in Helsinki due to wings freezing that caused 20 minute delay to Amsterdam and made the interchange stressful.

PRG
AMS
Excellent 8.0

Pros: short, sweet and to the point. 1+ hour flight is usually an easy hop.

LAX
AMS
Excellent 10.0

Pros: Nice people and good service

Cons: Not much

Mon, 11 Mar
LCY
London City
YOW
Ottawa
28h 16m
Thu, 21 Mar
YOW
Ottawa
LCY
London City
12h 05m
C$ 859
Trip: 11 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2,552 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
AMS
MIA
Mediocre 2.0

Cons: Poor food, flight attend and finally baggage missing. Overall experience is extremely bad.

PRG
AMS
Mediocre 3.2

Pros: Nothing to mention

Cons: Crew was rude when I asked if there was a vegetarian option for the snack. I did request special meals for the trip. Even if they did not have a vegetarian option, they don't need to be rude!! Boarding was ridiculous. we were supposed to form a line and wait. Would have been a lot better if they boarded by seat numbers. Also they made me check in my fairly small and light carry on bag resulting in its contents arriving broken!

LAX
AMS
Excellent 10.0

Pros: Nice people and good service

Cons: Not much

SFO
AMS
Excellent 10.0

Pros: Last year I flew Lufthansa which was my worst experience flying ever. I thought the new standard was so low I would never fly to Europe again. I had heard KLM was good but I felt this was as good as could be expected actually much better. The food was even good.

Cons: I would have to dream something up.

MAN
AMS
Mediocre 3.6

Pros: MCR airport Mert & Greet parking was smooth and efficient.

Cons: Flight was delayed 2 hours due to bad weather. Additional baggage payment to Air Baltic did not show up on the KLM system and we had to pay again. Nowhere to address this with Air Baltic even in Tallin. Handlers seem uninterested and refer us to ‘the website to address the issue.....’

Thu, 21 Mar
STN
London Stansted
YOW
Ottawa
19h 41m
Sat, 30 Mar
YOW
Ottawa
STN
London Stansted
22h 55m
C$ 1131
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Wed, 16 Jan
LCY
London City
YOW
Ottawa
15h 18m
Sun, 20 Jan
YOW
Ottawa
LCY
London City
21h 50m
C$ 1108
Trip: 5 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2,552 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
BOM
AMS
Mediocre 2.0

Cons: Poor food, flight attend and finally baggage missing. Overall experience is extremely bad.

AMS
SFO
Excellent 9.6

Pros: Friendly crew! More legroom, good entertainment and food was great! Smooth landings pretty much on time.

Cons: Boarding could be better

TLV
AMS
Mediocre 2.6

Cons: Landlords gave an unpleasant service! Which continued with late of 50min of the flight, they didn’t do anything to help/ to provide the passengers the answers. The food was cold It was comfort place to sit. Bad experience with KLM

PRG
AMS
Mediocre 3.2

Pros: Nothing to mention

Cons: Crew was rude when I asked if there was a vegetarian option for the snack. I did request special meals for the trip. Even if they did not have a vegetarian option, they don't need to be rude!! Boarding was ridiculous. we were supposed to form a line and wait. Would have been a lot better if they boarded by seat numbers. Also they made me check in my fairly small and light carry on bag resulting in its contents arriving broken!

PRG
AMS
Excellent 8.0

Pros: short, sweet and to the point. 1+ hour flight is usually an easy hop.

Wed, 19 Dec
LGW
London Gatwick
YOW
Ottawa
31h 29m
Sun, 30 Dec
YOW
Ottawa
LGW
London Gatwick
9h 50m
C$ 1225
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 17 Dec
LCY
London City
YOW
Ottawa
34h 11m
Sat, 29 Dec
YOW
Ottawa
LCY
London City
26h 50m
C$ 1457
Trip: 13 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 7,491 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
HKG
ZRH
Mediocre 2.0

Cons: they cancelled letting me fly

LAX
ZRH
Excellent 9.0

Pros: The food was delicious, the staff was wonderful. Entertainment was awesome.

Cons: The leg room or seat closeness.

ZRH
ORD
Excellent 9.0

Cons: Seats are too cramped for an international flight.

ZRH
DXB
Excellent 8.0

Cons: Pleasant overall experience

ZRH
BOS
Excellent 10.0

Pros: From start to finish, Sevdije was in great hands. She had to be in a wheelchair, and there were three connecting flights in countries where she doesn't speak the language. It could have been so complicated, and everyone made it SO EASY. She was all smiles when she arrived in Boston. THANK YOU!!!!!!

Cons: Nothing!

Sun, 30 Dec
LHR
London Heathrow
YOW
Ottawa
21h 19m
Sat, 5 Jan
YOW
Ottawa
LHR
London Heathrow
15h 25m
C$ 1390
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 28 Dec
STN
London Stansted
YOW
Ottawa
19h 43m
Tue, 15 Jan
YOW
Ottawa
STN
London Stansted
23h 40m
C$ 1503
Trip: 19 days
Overall 0.0 Poor
Based on 0 reviews
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*
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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.