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Cheap flights from London, Ontario to Portland from C$ 411

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to Portland departing on 29/7. 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
1 adult, Economy, 0 bags

Find the cheapest flights from London, Ontario to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
6:10 a.m. - 1:50 p.m.
YXU
-
PDX
10h 40m
1 stop
WestJet Logo
2:30 p.m. - 5:20 a.m.
PDX
-
YXU
11h 50m
1 stop
C$ 579WestJet
Tue, 28 Jul - Tue, 4 Aug
WestJet Logo
5:55 p.m. - 1:50 p.m.
YXU
-
PDX
22h 55m
1 stop
WestJet Logo
2:30 p.m. - 5:20 a.m.
PDX
-
YXU
11h 50m
1 stop
C$ 721WestJet
Tue, 1 Sep - Mon, 7 Sep
WestJet Logo
8:40 p.m. - 1:50 p.m.
YXU
-
PDX
20h 10m
1 stop
WestJet Logo
2:30 p.m. - 5:20 a.m.
PDX
-
YXU
11h 50m
1 stop
C$ 722WestJet
Thu, 30 Jul - Fri, 28 Aug
Delta Logo
6:10 a.m. - 1:50 p.m.
YXU
-
PDX
10h 40m
1 stop
Delta Logo
5:45 p.m. - 5:20 a.m.
PDX
-
YXU
8h 35m
2 stops
C$ 790Delta
Fri, 2 Oct - Tue, 6 Oct
Multiple Airlines Logo
8:40 p.m. - 1:50 p.m.
YXU
-
PDX
20h 10m
1 stop
Multiple Airlines Logo
9:48 p.m. - 5:20 a.m.
PDX
-
YXU
28h 32m
2 stops
C$ 801Multiple Airlines
Tue, 28 Jul - Tue, 4 Aug
Multiple Airlines Logo
8:40 p.m. - 1:50 p.m.
YXU
-
PDX
20h 10m
1 stop
Multiple Airlines Logo
9:46 p.m. - 5:20 a.m.
PDX
-
YXU
28h 34m
2 stops
C$ 809Multiple Airlines
Tue, 1 Sep - Mon, 7 Sep
Air Canada Logo
5:40 a.m. - 2:51 p.m.
YXU
-
PDX
12h 11m
2 stops
Air Canada Logo
7:45 p.m. - 5:43 p.m.
PDX
-
YXU
18h 58m
2 stops
C$ 812Air Canada
Fri, 18 Sep - Sat, 19 Sep
Air Canada Logo
5:40 a.m. - 2:51 p.m.
YXU
-
PDX
12h 11m
2 stops
Air Canada Logo
7:45 p.m. - 5:43 p.m.
PDX
-
YXU
18h 58m
2 stops
C$ 814Air Canada
Fri, 18 Sep - Sat, 19 Sep
Air Canada Logo
5:40 a.m. - 2:51 p.m.
YXU
-
PDX
12h 11m
2 stops
Air Canada Logo
7:45 p.m. - 5:43 p.m.
PDX
-
YXU
18h 58m
2 stops
C$ 818Air Canada
Fri, 4 Sep - Tue, 8 Sep
Air Canada Logo
9:10 p.m. - 9:31 a.m.
YXU
-
PDX
15h 21m
2 stops
Air Canada Logo
7:45 p.m. - 9:17 a.m.
PDX
-
YXU
10h 32m
2 stops
C$ 846Air Canada
Tue, 14 Jul - Thu, 16 Jul

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WestJet flights from London, Ontario to Portland

Our best WestJet deals on London, Ontario to Portland flight tickets
WestJet
28 Jul
YXU6:10 a.m.London
10h 40m
1 stop
PDX1:50 p.m.Portland
4 Aug
PDX2:30 p.m.Portland
11h 50m
1 stop
YXU5:20 a.m.London
C$ 579
WestJet
1 Sep
YXU5:55 p.m.London
22h 55m
1 stop
PDX1:50 p.m.Portland
7 Sep
PDX2:30 p.m.Portland
11h 50m
1 stop
YXU5:20 a.m.London
C$ 721
WestJet
14 Jul
YXU5:55 p.m.London
22h 55m
1 stop
PDX1:50 p.m.Portland
16 Jul
PDX2:30 p.m.Portland
11h 50m
1 stop
YXU5:20 a.m.London
C$ 988

United Airlines flights from London, Ontario to Portland

Our best United Airlines deals on London, Ontario to Portland flight tickets
United Airlines
28 Jul
YXU10:05 a.m.London
13h 14m
2 stops
PDX8:19 p.m.Portland
4 Aug
PDX1:14 p.m.Portland
17h 06m
2 stops
YXU9:20 a.m.London
C$ 917
United Airlines
1 Sep
YXU5:40 a.m.London
15h 39m
3 stops
PDX6:19 p.m.Portland
7 Sep
PDX5:00 a.m.Portland
9h 45m
2 stops
YXU5:45 p.m.London
C$ 995
United Airlines
28 Jul
YXU10:05 a.m.London
11h 42m
2 stops
PDX6:47 p.m.Portland
4 Aug
PDX5:15 a.m.Portland
13h 25m
3 stops
YXU9:40 p.m.London
C$ 4,597

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to Portland 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 96,600 searches. Data last updated 18 June 2026.
Use the filters below to find and compare flights from London, Ontario to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonPortland

YXU - PDX

YXUPDX

London

Tue 28/7

6:10 a.m.-1:50 p.m.

1 stop10h 40m

Portland

Tue 4/8

2:30 p.m.-5:20 a.m.

1 stop11h 50m

C$ 579

LondonPortland

YXU - PDX

YXUPDX

London

Tue 1/9

5:55 p.m.-1:50 p.m.

1 stop22h 55m

Portland

Mon 7/9

2:30 p.m.-5:20 a.m.

1 stop11h 50m

C$ 721

LondonPortland

YXU - PDX

YXUPDX

London

Thu 30/7

8:40 p.m.-1:50 p.m.

1 stop20h 10m

Portland

Fri 28/8

2:30 p.m.-5:20 a.m.

1 stop11h 50m

C$ 722
Quickest round-trip

LondonPortland

YXU - PDX

YXUPDX

London

Fri 2/10

6:10 a.m.-1:50 p.m.

1 stop10h 40m

Portland

Tue 6/10

5:45 p.m.-5:20 a.m.

2 stops8h 35m

C$ 790

LondonPortland

YXU - PDX

YXUPDX

London

Tue 28/7

8:40 p.m.-1:50 p.m.

1 stop20h 10m

Portland

Tue 4/8

9:48 p.m.-5:20 a.m.

2 stops28h 32m

C$ 801

LondonPortland

YXU - PDX

YXUPDX

London

Tue 1/9

8:40 p.m.-1:50 p.m.

1 stop20h 10m

Portland

Mon 7/9

9:46 p.m.-5:20 a.m.

2 stops28h 34m

C$ 809

LondonPortland

YXU - PDX

YXUPDX

London

Fri 18/9

5:40 a.m.-2:51 p.m.

2 stops12h 11m

Portland

Sat 19/9

7:45 p.m.-5:43 p.m.

2 stops18h 58m

C$ 812

LondonPortland

YXU - PDX

YXUPDX

London

Fri 18/9

5:40 a.m.-2:51 p.m.

2 stops12h 11m

Portland

Sat 19/9

7:45 p.m.-5:43 p.m.

2 stops18h 58m

C$ 814

LondonPortland

YXU - PDX

YXUPDX

London

Fri 4/9

5:40 a.m.-2:51 p.m.

2 stops12h 11m

Portland

Tue 8/9

7:45 p.m.-5:43 p.m.

2 stops18h 58m

C$ 818

LondonPortland

YXU - PDX

YXUPDX

London

Tue 14/7

9:10 p.m.-9:31 a.m.

2 stops15h 21m

Portland

Thu 16/7

7:45 p.m.-9:17 a.m.

2 stops10h 32m

C$ 846

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

How to get the cheapest flight ticket from London, Ontario to Portland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on London, Ontario to Portland flights?

You could potentially save up to 23% on your flight if you consider stops on a London, Ontario to Portland flight.

When to book flights from London, Ontario to Portland

Are you open to changing your travel dates? Check out the ideal times to fly from London, Ontario to Portland according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London, Ontario to Portland (YXU to PDX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to Portland

Fastest flight time

10h 40m

Direct flights

None
The fastest flight from London, Ontario to Portland takes 10h 40m
There are no direct flights from London, Ontario to Portland. There are no popular flight routes from London, Ontario to Portland.
Search flight deals

Frequently asked questions about flying from London, Ontario to Portland

  • How far is London to Portland by plane?

    Portland is 3273.7 km away from London. Typically, this will take 10h 40m by plane in normal conditions.

  • When did momondo last update prices for flights from London Airport to Portland Airport?

    Prices for flights from London Airport to Portland Airport refresh daily.

  • How old do you have to be to fly from London Airport to Portland Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to Portland Airport.

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

    The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Cannon Beach
Vancouver
Seaside
Carson
Astoria
Manzanita
Pacific City
Long Beach
Hillsboro
Tillamook
Lincoln City
Troutdale

Why use momondo?

Why should I use momondo to find a flight deal from London to Portland?

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

Can I find flights from London to Portland with flexible booking policies on momondo?

All flight searches from London to Portland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Portland?

Once all potential London to Portland 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 London to Portland right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from London and alert you when they change.

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