Cheap flights from Portland to the United Kingdom from $257
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to the United Kingdom departing on 7/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
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Last minute
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Cheap round-trip flights
KAYAK's recommended round-trip deals from the most popular airlines that fly from Portland to the United Kingdom.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Portland to the United Kingdom.
Cheap last minute flights
Planning a quick getaway from Portland to the United Kingdom? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to the United Kingdom, so you can enjoy a seamless trip without layovers.
Air Canada flights from Portland to United Kingdom
Our best Air Canada deals on Portland to United Kingdom flight tickets
Air Canada![Air Canada]()
Sep 20![Air Canada]()
Sep 30
PDX7:40 pmPortland
32h 10m
2 stops
LHR11:50 amLondon Heathrow
LHR8:45 amLondon Heathrow
18h 01m
2 stops
PDX6:46 pmPortland
Air Canada![Air Canada]()
Aug 10![Air Canada]()
Aug 22
PDX6:15 amPortland
21h 35m
2 stops
LHR11:50 amLondon Heathrow
LHR4:00 pmLondon Heathrow
31h 25m
2 stops
PDX3:25 pmPortland
British Airways flights from Portland to United Kingdom
Our best British Airways deals on Portland to United Kingdom flight tickets
British Airways![British Airways]()
Sep 12![British Airways]()
Sep 24
PDX1:15 pmPortland
22h 55m
2 stops
INV8:10 pmInverness
INV10:30 amInverness
20h 34m
2 stops
PDX11:04 pmPortland
British Airways![British Airways]()
Jul 30![British Airways]()
Sep 30
PDX10:25 amPortland
14h 45m
1 stop
LHR9:10 amLondon Heathrow
LHR3:40 pmLondon Heathrow
9h 55m
PDX5:35 pmPortland
See travel insights to the United Kingdom from
How to get the cheapest flight ticket from Portland to United Kingdom
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
Prices
Airlines
Other information
What is the cheapest month to fly to United Kingdom?
In general, November is the cheapest month to fly from Portland to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $686. If you aren’t able to travel to United Kingdom during the month of November, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $688.
What is the cheapest day to depart on your flight to United Kingdom?
The cheapest day to depart from Portland to United Kingdom is on a Tuesday when prices can be found for as low as $861. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $1,092.
What is the cheapest time of day to depart on your flight to United Kingdom?
According to our data, the cheapest time of day to fly to United Kingdom is in the afternoon. momondo users have found flights departing from Portland to United Kingdom in the afternoon for as low as $787. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the evening, with an average ticket price of $984. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Portland to United Kingdom flight route?
Fly from Portland to London Heathrow for the best Portland - United Kingdom flight prices
How far in advance should I book a flight to United Kingdom?
You are more likely to see cheaper flights to United Kingdom from Portland when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $864 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Portland for as low as $825 on momondo.
What cabin class options are available on Portland to United Kingdom flights?
There are 3 cabin classes available to choose from on Portland to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Portland to United Kingdom?
Icelandair, WestJet, and Delta are the most popular carriers operating from Portland to United Kingdom
What airlines fly to United Kingdom?
British Airways, Iberia and American Airlines are the top three most popular airlines that fly to United Kingdom from Portland according to our data. British Airways is the first choice among our users, with 60% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 13 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.
How many flights depart from Portland to United Kingdom on average per day?
The number of flights available between Portland and United Kingdom is 7 per day as of April 2025. The most frequent departure time is 7:00PM, with 100% of daily flights leaving in the evening.
How many flights depart from Portland to United Kingdom on average per week?
As of April 2025, 49 flights take off from Portland and land in United Kingdom each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
Cheap Portland to United Kingdom flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to United Kingdom
Best Price Found | $257 |
|---|---|
Fastest flight time | 9h 35m |
Direct flights | Every day |
Airports in United Kingdom | 7 airports |
When did momondo last update prices for flights from Portland Airport to United Kingdom?
Prices for flights from Portland Airport to United Kingdom refresh daily.
How many operators does momondo search for flights from Portland Airport to United Kingdom?
As of April 2025, there are 13 operators available to choose from for flights from Portland Airport to United Kingdom.
How old do you have to be to fly from Portland Airport to United Kingdom?
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 Portland Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The required travel and health documents for your United Kingdom 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 United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Portland to United Kingdom?
Based on momondo bookings for flights between Portland and United Kingdom, the leading plane model is Boeing 787-10 Dreamliner, making up 70.63% of the total bookings. Other popular models include Boeing 787-8 Dreamliner with 20.20%, Boeing 787-9 Dreamliner with 3.92%, and Boeing 787 Dreamliner with 3.23%.
Best airlines flying from Portland to United Kingdom
Compare and see reviews for airlines that fly from Portland to United Kingdom with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $491 | Free Cancellation | Rating 7.0 484 reviews | |||
| PriceFrom $580 | Free Cancellation | Rating 7.0 9,197 reviews | |||
| PriceFrom $584 | Free Cancellation | Rating 7.0 2,686 reviews | |||
| PriceFrom $608 | Free Cancellation | Rating 7.8 1,333 reviews | |||
| PriceFrom $612 | Free Cancellation | Rating 6.6 6,815 reviews | |||
| PriceFrom $612 | Free Cancellation | Rating 8.0 7,920 reviews | |||
| PriceFrom $620 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $624 | Free Cancellation | Rating 7.4 642 reviews | |||
| PriceFrom $629 | Free Cancellation | Rating 7.6 1,272 reviews | |||
| PriceFrom $645 | Free Cancellation | Rating 7.4 8,685 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Portland to United Kingdom?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Portland.
Can I find flights from Portland to United Kingdom with flexible booking policies on momondo?
Yes. All flights to United Kingdom from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Portland to United Kingdom?
momondo provides multiple filters to help you find the best flight to United Kingdom from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Portland to United Kingdom right now. Can momondo alert me if prices change?
Price alerts on flights to United Kingdom from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.
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