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Cheap flights from Ottawa to London from £294

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to London departing on 4/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
KLM Logo
17:10 - 16:50
YOW
-
SOU
18h 40m
2 stops
KLM Logo
17:20 - 15:00
SOU
-
YOW
26h 40m
2 stops
£622KLM
Sat, 13 Jun - Sun, 28 Jun
Multiple Airlines Logo
18:25 - 16:50
YOW
-
SOU
17h 25m
2 stops
Multiple Airlines Logo
20:45 - 08:05
SOU
-
YOW
40h 20m
3 stops
£828Multiple Airlines
Sat, 13 Jun - Sun, 28 Jun

KLM flights from Ottawa to Southampton

Our best KLM deals on Ottawa to Southampton flight tickets
KLM
13 Jun
YOW17:10Ottawa
18h 40m
2 stops
SOU16:50Southampton Eastleigh
28 Jun
SOU17:20Southampton Eastleigh
26h 40m
2 stops
YOW15:00Ottawa
£622
KLM
22 Mar
YOW05:40Ottawa
22h 40m
2 stops
SOU08:20Southampton Eastleigh
24 Mar
SOU17:35Southampton Eastleigh
50h 35m
2 stops
YOW16:10Ottawa
£1,036

momondo Fare Finder

 
Customise your flight search to find flights from Ottawa to Southampton that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 21 March 2026.
Use the filters below to find and compare flights from Ottawa to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

OttawaSouthampton

YOW - SOU

YOWSOU

Ottawa

Sat 13/6

17:10-16:50

2 stops18h 40m

Southampton Eastleigh

Sun 28/6

17:20-15:00

2 stops26h 40m

£622

OttawaSouthampton

YOW - SOU

YOWSOU

Ottawa

Sat 13/6

18:25-16:50

2 stops17h 25m

Southampton Eastleigh

Sun 28/6

20:45-08:05

3 stops40h 20m

£828
Cheapest one-way
Fastest single journey

OttawaSouthampton

YOW - SOU

YOWSOU

Ottawa

Mon 4/5

06:55-19:30

2 stops31h 35m

£294

OttawaSouthampton

YOW - SOU

YOWSOU

Ottawa

Mon 4/5

06:55-20:45

3 stops32h 50m

£301

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Ottawa to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to Southampton according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Ottawa to Southampton (YOW to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Southampton

Fastest flight time

22h 40m

Direct flights

None
The fastest flight from Ottawa to Southampton takes 22h 40m
There are no direct flights from Ottawa to Southampton. There are no popular flight routes from Ottawa to Southampton.
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  • How far is Ottawa to Southampton Eastleigh by plane?

    There are 3295.6 mi between Ottawa and Southampton Eastleigh. By plane, this route typically takes 22h 40m.

  • When did momondo last update prices for flights from Ottawa Airport to Southampton Eastleigh Airport?

    Prices for flights from Ottawa Airport to Southampton Eastleigh Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Ottawa Airport to Southampton Eastleigh Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The travel and health documents required for your trip to Southampton Eastleigh Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Southampton Eastleigh Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from Ottawa to Southampton?

    Price Alerts will notify you by email when the price for flights to Southampton from Ottawa decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Ottawa to Southampton with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Travelling to a place near London?

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Portsmouth

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Southampton?

Finding the right flight to Southampton from Ottawa is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Southampton quick and easy, saving you time and money.

Can I find flights from Ottawa to Southampton with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Southampton from Ottawa with this policy.

How can momondo help me find flights from Ottawa to Southampton?

Once all potential Ottawa to Southampton flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ottawa to Southampton right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ottawa to Southampton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Southampton trip

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