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Cheap flights from London, Ontario to Portland from $326

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to Portland departing on 8/11. 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

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 am - 1:50 pm
YXU
-
PDX
10h 40m
1 stop
WestJet Logo
2:30 pm - 7:50 pm
PDX
-
YXU
26h 20m
1 stop
$326WestJet
Tue, Aug 11 - Wed, Aug 12
WestJet Logo
6:10 am - 1:50 pm
YXU
-
PDX
10h 40m
1 stop
WestJet Logo
2:30 pm - 5:20 am
PDX
-
YXU
11h 50m
1 stop
$392WestJet
Tue, Aug 11 - Wed, Aug 12
WestJet Logo
6:10 am - 1:50 pm
YXU
-
PDX
10h 40m
1 stop
WestJet Logo
2:30 pm - 7:50 pm
PDX
-
YXU
26h 20m
1 stop
$393WestJet
Tue, Aug 11 - Wed, Aug 12
WestJet Logo
6:10 am - 1:50 pm
YXU
-
PDX
10h 40m
1 stop
WestJet Logo
2:30 pm - 5:20 am
PDX
-
YXU
11h 50m
1 stop
$394WestJet
Tue, Aug 11 - Wed, Aug 12
Air Canada Logo
10:05 am - 7:11 pm
YXU
-
PDX
12h 06m
2 stops
Air Canada Logo
7:45 pm - 9:20 am
PDX
-
YXU
10h 35m
2 stops
$522Air Canada
Tue, Aug 11 - Wed, Aug 12
Air Canada Logo
10:05 am - 7:11 pm
YXU
-
PDX
12h 06m
2 stops
Air Canada Logo
7:45 pm - 9:20 am
PDX
-
YXU
10h 35m
2 stops
$524Air Canada
Tue, Aug 11 - Wed, Aug 12
Delta Logo
6:10 am - 1:50 pm
YXU
-
PDX
10h 40m
1 stop
Delta Logo
5:45 pm - 5:20 am
PDX
-
YXU
8h 35m
2 stops
$526Delta
Tue, Aug 11 - Wed, Aug 12
Delta Logo
6:10 am - 1:50 pm
YXU
-
PDX
10h 40m
1 stop
Delta Logo
5:45 pm - 5:20 am
PDX
-
YXU
8h 35m
2 stops
$528Delta
Tue, Aug 11 - Wed, Aug 12
Delta Logo
6:10 am - 1:50 pm
YXU
-
PDX
10h 40m
1 stop
Delta Logo
5:54 pm - 5:20 am
PDX
-
YXU
8h 26m
2 stops
$533Delta
Tue, Aug 11 - Wed, Aug 12
Delta Logo
6:10 am - 1:50 pm
YXU
-
PDX
10h 40m
1 stop
Delta Logo
5:45 pm - 5:20 am
PDX
-
YXU
8h 35m
2 stops
$534Delta
Tue, Aug 11 - Wed, Aug 12

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WestJet flights from London, Ontario to Portland

Our best WestJet deals on London, Ontario to Portland flight tickets
WestJet
Aug 11
YXU6:10 amLondon
10h 40m
1 stop
PDX1:50 pmPortland
Aug 12
PDX2:30 pmPortland
26h 20m
1 stop
YXU7:50 pmLondon
$326
WestJet
Aug 11
YXU6:10 amLondon
10h 40m
1 stop
PDX1:50 pmPortland
Aug 12
PDX2:30 pmPortland
11h 50m
1 stop
YXU5:20 amLondon
$392
WestJet
Aug 11
YXU6:10 amLondon
10h 40m
1 stop
PDX1:50 pmPortland
Aug 12
PDX2:30 pmPortland
26h 20m
1 stop
YXU7:50 pmLondon
$393

Air Canada flights from London, Ontario to Portland

Our best Air Canada deals on London, Ontario to Portland flight tickets
Air Canada
Aug 11
YXU10:05 amLondon
12h 06m
2 stops
PDX7:11 pmPortland
Aug 12
PDX7:45 pmPortland
10h 35m
2 stops
YXU9:20 amLondon
$522
Air Canada
Aug 11
YXU10:05 amLondon
12h 06m
2 stops
PDX7:11 pmPortland
Aug 12
PDX7:45 pmPortland
10h 35m
2 stops
YXU9:20 amLondon
$524
Air Canada
Aug 11
YXU5:40 amLondon
12h 11m
2 stops
PDX2:51 pmPortland
Aug 12
PDX7:45 pmPortland
10h 35m
2 stops
YXU9:20 amLondon
$549

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 832,500 searches. Data last updated May 4, 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 8/11

6:10 am-1:50 pm

1 stop10h 40m

Portland

Wed 8/12

2:30 pm-7:50 pm

1 stop26h 20m

$326

LondonPortland

YXU - PDX

YXUPDX

London

Tue 8/11

6:10 am-1:50 pm

1 stop10h 40m

Portland

Wed 8/12

2:30 pm-5:20 am

1 stop11h 50m

$392

LondonPortland

YXU - PDX

YXUPDX

London

Tue 8/11

6:10 am-1:50 pm

1 stop10h 40m

Portland

Wed 8/12

2:30 pm-7:50 pm

1 stop26h 20m

$393

LondonPortland

YXU - PDX

YXUPDX

London

Tue 8/11

6:10 am-1:50 pm

1 stop10h 40m

Portland

Wed 8/12

2:30 pm-5:20 am

1 stop11h 50m

$394

LondonPortland

YXU - PDX

YXUPDX

London

Tue 8/11

10:05 am-7:11 pm

2 stops12h 06m

Portland

Wed 8/12

7:45 pm-9:20 am

2 stops10h 35m

$522

LondonPortland

YXU - PDX

YXUPDX

London

Tue 8/11

10:05 am-7:11 pm

2 stops12h 06m

Portland

Wed 8/12

7:45 pm-9:20 am

2 stops10h 35m

$524

LondonPortland

YXU - PDX

YXUPDX

London

Tue 8/11

6:10 am-1:50 pm

1 stop10h 40m

Portland

Wed 8/12

5:45 pm-5:20 am

2 stops8h 35m

$526

LondonPortland

YXU - PDX

YXUPDX

London

Tue 8/11

6:10 am-1:50 pm

1 stop10h 40m

Portland

Wed 8/12

5:45 pm-5:20 am

2 stops8h 35m

$528
Quickest round-trip

LondonPortland

YXU - PDX

YXUPDX

London

Tue 8/11

6:10 am-1:50 pm

1 stop10h 40m

Portland

Wed 8/12

5:54 pm-5:20 am

2 stops8h 26m

$533

LondonPortland

YXU - PDX

YXUPDX

London

Tue 8/11

6:10 am-1:50 pm

1 stop10h 40m

Portland

Wed 8/12

5:45 pm-5:20 am

2 stops8h 35m

$534

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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

What is the cheapest airline that flies from London to Portland?

Air Canada, WestJet, and United Airlines are the most popular carriers operating from London to Portland

What airlines fly to Portland?

Delta, United Airlines and Air Canada are the top three most popular airlines that fly to Portland from London, Ontario according to our data. Delta is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 4 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

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

13h 46m

Direct flights

None
The fastest flight from London, Ontario to Portland takes 13h 46m
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?

    London and Portland are 2034.2 mi apart from one another. Typically, this will take 13h 46m 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 are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Cannon Beach
Vancouver
Salem
Astoria
Long Beach
Rockaway Beach
Beaverton
Depoe Bay
Hillsboro
Tigard
Longview
Hood River
Troutdale
Newberg
McMinnville
The Dalles
Manzanita
Pacific City

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Portland for you.

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

momondo does allow users to show only those flights to Portland from London which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Portland from London.

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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