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Cheap flights Ottawa (Macdonald-Cartier) to London

1 passenger, economy

Cheap flights Ottawa to London

Compare prices, duration and stops

Air Transat
TS 7865
00:55
Ottawa, Macdonald-Cartier (YOW)
Thu, 17 sep
30h
1 stop
06:55
London, London Gatwick Airport (LGW)
Fri, 18 sep +1
210 £
Air Transat
TS 7453
14:00
Ottawa, Macdonald-Cartier (YOW)
Thu, 17 sep
19h 45min
1 stop
09:45
London, London Gatwick Airport (LGW)
Fri, 18 sep +1
191 £
Air Transat
TS 7978
20:00
Ottawa, Macdonald-Cartier (YOW)
Thu, 17 sep
10h 55min
1 stop
06:55
London, London Gatwick Airport (LGW)
Fri, 18 sep +1
209 £
Porter Airlines
PD 7978
20:00
Ottawa, Macdonald-Cartier (YOW)
Fri, 18 sep
13h 45min
1 stop
09:45
London, London Gatwick Airport (LGW)
Sat, 19 sep +1
209 £
Air Transat
TS 156
18:15
Ottawa, Macdonald-Cartier (YOW)
Sun, 20 sep
14h 35min
1 stop
08:50
London, London Gatwick Airport (LGW)
Mon, 21 sep +1
195 £
Air Transat
TS 382 🔥 Hot deal
23:40
Ottawa, Macdonald-Cartier (YOW)
Fri, 25 sep
7h 15min
Direct
06:55
London, London Gatwick Airport (LGW)
Sat, 26 sep +1
222 £
Porter Airlines
PD 7865
00:55
Ottawa, Macdonald-Cartier (YOW)
Sat, 26 sep
30h
1 stop
06:55
London, London Gatwick Airport (LGW)
Sun, 27 sep +1
206 £
Air Transat
TS 382 Best price
23:40
Ottawa, Macdonald-Cartier (YOW)
Fri, 2 oct
7h 15min
Direct
06:55
London, London Gatwick Airport (LGW)
Sat, 3 oct +1
184 £
Air Transat
TS 7851
11:00
Ottawa, Macdonald-Cartier (YOW)
Sat, 3 oct
19h 55min
1 stop
06:55
London, London Gatwick Airport (LGW)
Sun, 4 oct +1
208 £
Air Transat
TS 7453
12:40
Ottawa, Macdonald-Cartier (YOW)
Sat, 3 oct
18h 15min
1 stop
06:55
London, London Gatwick Airport (LGW)
Sun, 4 oct +1
190 £
Air Transat
TS 382
23:40
Ottawa, Macdonald-Cartier (YOW)
Sun, 4 oct
7h 15min
Direct
06:55
London, London Gatwick Airport (LGW)
Mon, 5 oct +1
202 £
Air Transat
TS 7851
11:00
Ottawa, Macdonald-Cartier (YOW)
Mon, 5 oct
22h 45min
1 stop
09:45
London, London Gatwick Airport (LGW)
Tue, 6 oct +1
187 £
Air Transat
TS 7453
14:00
Ottawa, Macdonald-Cartier (YOW)
Mon, 5 oct
19h 45min
1 stop
09:45
London, London Gatwick Airport (LGW)
Tue, 6 oct +1
206 £
Air Transat
TS 7978
20:00
Ottawa, Macdonald-Cartier (YOW)
Mon, 5 oct
13h 45min
1 stop
09:45
London, London Gatwick Airport (LGW)
Tue, 6 oct +1
190 £
Porter Airlines
PD 7978
20:00
Ottawa, Macdonald-Cartier (YOW)
Tue, 6 oct
13h 45min
1 stop
09:45
London, London Gatwick Airport (LGW)
Wed, 7 oct +1
200 £
Porter Airlines
PD 7978
20:00
Ottawa, Macdonald-Cartier (YOW)
Wed, 7 oct
13h 45min
1 stop
09:45
London, London Gatwick Airport (LGW)
Thu, 8 oct +1
200 £
Air Transat
TS 382
23:40
Ottawa, Macdonald-Cartier (YOW)
Fri, 9 oct
7h 15min
Direct
06:55
London, London Gatwick Airport (LGW)
Sat, 10 oct +1
195 £
Air Transat
TS 7453
12:40
Ottawa, Macdonald-Cartier (YOW)
Sat, 10 oct
18h 15min
1 stop
06:55
London, London Gatwick Airport (LGW)
Sun, 11 oct +1
193 £
Air Transat
TS 382
23:40
Ottawa, Macdonald-Cartier (YOW)
Sun, 11 oct
7h 15min
Direct
06:55
London, London Gatwick Airport (LGW)
Mon, 12 oct +1
187 £
Air Transat
TS 7851
11:00
Ottawa, Macdonald-Cartier (YOW)
Thu, 22 oct
19h 55min
1 stop
06:55
London, London Gatwick Airport (LGW)
Fri, 23 oct +1
206 £
Porter Airlines
PD 150
11:00
Ottawa, Macdonald-Cartier (YOW)
Thu, 22 oct
19h 55min
1 stop
06:55
London, London Gatwick Airport (LGW)
Fri, 23 oct +1
208 £
Air Transat
TS 7978
20:00
Ottawa, Macdonald-Cartier (YOW)
Thu, 22 oct
10h 55min
1 stop
06:55
London, London Gatwick Airport (LGW)
Fri, 23 oct +1
189 £
Air Transat
TS 382
23:40
Ottawa, Macdonald-Cartier (YOW)
Fri, 23 oct
7h 15min
Direct
06:55
London, London Gatwick Airport (LGW)
Sat, 24 oct +1
202 £
WestJet
WS 893
10:55
Ottawa, Macdonald-Cartier (YOW)
Sat, 24 oct
26h 45min
2 stops
13:40
London, Stansted Airport (STN)
Sun, 25 oct +1
227 £
Porter Airlines
PD 277
22:55
Ottawa, Macdonald-Cartier (YOW)
Fri, 30 oct
37h 55min
1 stop
12:50
London, London Heathrow Airport (LHR)
Sun, 1 nov +1
284 £
WestJet
WS 611
10:10
Ottawa, Macdonald-Cartier (YOW)
Sat, 31 oct
26h 40min
1 stop
12:50
London, London Heathrow Airport (LHR)
Sun, 1 nov +1
324 £
WestJet
WS 589
10:30
Ottawa, Macdonald-Cartier (YOW)
Sun, 1 nov
26h 10min
2 stops
12:40
London, London Heathrow Airport (LHR)
Mon, 2 nov +1
286 £
Porter Airlines
PD 277
23:55
Ottawa, Macdonald-Cartier (YOW)
Mon, 2 nov
36h 55min
1 stop
12:50
London, London Heathrow Airport (LHR)
Wed, 4 nov +1
257 £
Porter Airlines
PD 7277
23:55
Ottawa, Macdonald-Cartier (YOW)
Mon, 2 nov
36h 55min
1 stop
12:50
London, London Heathrow Airport (LHR)
Wed, 4 nov +1
261 £
Passaredo Linhas Aereas
P3 2449
01:55
Ottawa, Macdonald-Cartier (YOW)
Tue, 3 nov
39h 35min
2 stops
17:30
London, London Heathrow Airport (LHR)
Wed, 4 nov +1
287 £
WestJet
WS 611
11:10
Ottawa, Macdonald-Cartier (YOW)
Tue, 3 nov
33h 40min
2 stops
20:50
London, Stansted Airport (STN)
Wed, 4 nov +1
264 £
WestJet
WS 611
11:10
Ottawa, Macdonald-Cartier (YOW)
Wed, 4 nov
25h 40min
1 stop
12:50
London, London Heathrow Airport (LHR)
Thu, 5 nov +1
296 £
Porter Airlines
PD 277
23:55
Ottawa, Macdonald-Cartier (YOW)
Thu, 5 nov
36h 55min
1 stop
12:50
London, London Heathrow Airport (LHR)
Sat, 7 nov +1
234 £
WestJet
WS 615
21:15
Ottawa, Macdonald-Cartier (YOW)
Thu, 19 nov
15h 35min
1 stop
12:50
London, London Heathrow Airport (LHR)
Fri, 20 nov +1
222 £
Porter Airlines
PD 154
15:20
Ottawa, Macdonald-Cartier (YOW)
Mon, 4 jan
14h 55min
1 stop
06:15
London, London Heathrow Airport (LHR)
Tue, 5 jan +1
372 £
WestJet
WS 615
21:15
Ottawa, Macdonald-Cartier (YOW)
Tue, 5 jan
15h 35min
1 stop
12:50
London, London Heathrow Airport (LHR)
Wed, 6 jan +1
313 £
Porter Airlines
PD 277
23:55
Ottawa, Macdonald-Cartier (YOW)
Wed, 6 jan
36h 55min
1 stop
12:50
London, London Heathrow Airport (LHR)
Fri, 8 jan +1
334 £

Low price calendar

September 2026
Price chart (September 2026)
min: 195 £ · max: 209 £
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202 £
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209 £
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195 £
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206 £
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Cheap flights Ottawa to London

Air Transat
Air Transat
Mon, Wed, Thu, Fri, Sat, Sun
Price from
£184
Porter Airlines
Porter Airlines
Mon, Tue, Wed, Thu, Fri, Sat
Price from
£206
WestJet
WestJet
Tue, Wed, Thu, Sat, Sun
Price from
£222
Passaredo Linhas Aereas
Passaredo Linhas Aereas
Tue
Price from
£287

Popular destinations from Ottawa

All →
YOW
Ottawa — Toronto
Canada → Canada
YTO
from
£39
YOW
Ottawa — Toronto
Canada → Canada
YYZ
from
£39
YOW
Ottawa — Calgary
Canada → Canada
YYC
from
£41
YOW
Ottawa — Toronto
Canada → Canada
YHM
from
£48
YOW
Ottawa — Edmonton
Canada → Canada
YEA
from
£50
YOW
Ottawa — Edmonton
Canada → Canada
YEG
from
£50
YOW
Ottawa — Winnipeg
Canada → Canada
YWG
from
£53
YOW
Ottawa — Montreal
Canada → Canada
YUL
from
£68
YOW
Ottawa — Montreal
Canada → Canada
YMQ
from
£68

Popular destinations to London

All →
IST
Istanbul — London
Turkiye → United Kingdom
LON
from
£11
FRA
Frankfurt — London
Germany → United Kingdom
LON
from
£11
AYT
Antalya — London
Turkiye → United Kingdom
LON
from
£11
RMO
Chisinau — London
Moldova → United Kingdom
LON
from
£11
CGN
Cologne — London
Germany → United Kingdom
LON
from
£12
BFS
Belfast — London
United Kingdom → United Kingdom
LON
from
£13
DTM
Dortmund — London
Germany → United Kingdom
LON
from
£13
MIL
Milan — London
Italy → United Kingdom
LON
from
£13
DUB
Dublin — London
Ireland → United Kingdom
LON
from
£13

Cheap flights Ottawa to London

Interesting facts about the route

Flight time

19h 45min

Distance

5 379 km

Average price

£208

Most frequent flight

TS 382

Passenger reviews

No reviews for this route yet

Internet abroad

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All plans

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30

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£8

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data

30

days

£10

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ukimobile

5 GB

data

30

days

£12

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data

30

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£14

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ukimobile

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30

days

£20

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Frequently Asked Questions

The average ticket price Ottawa London is £208. The cheapest ticket costs £191, operated by Air Transat, flight 7453, departing Ottawa on 17 September at 14:00, arriving London on 18 September at 09:45.
The average flight time is 14 hours 35 minutes. The fastest flight takes 10 hours 55 minutes, flight 7978 operated by Air Transat, departing Ottawa on 17 September at 20:00, arriving London on 18 September at 06:55.
Flights on the Ottawa - London route are operated by the following airlines: Passaredo Linhas Aereas, Porter Airlines, Air Transat, WestJet.
The distance from Ottawa to London is 5379 km.