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Journey information
Overview: Portland International Airport to London Heathrow Airport flight
USA
United Kingdom
Flights from Portland International Airport to London Heathrow Airport depart on average 36 times per day, taking around 10h 0m. Cheap flight tickets for this journey start at $462 (€373) if you book in advance.
There are 2 flights per day. The earliest flight runs at 14:40, the last at 16:00. The fastest flight covers the 4900 miles (7887 km) distance in 14h 45m. May is the cheapest month to fly.
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance 4900 miles (7887 km) |
Average flight duration 10h 0m |
Cheapest ticket price $462 (€373) |
Flights per day 36 |
Direct flights 2 |
Fastest flight 14h 45m |
Cheapest month to travel May |
First flight 14:40 |
Last flight 16:00 |
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Compare prices and tickets Portland International Airport to London Heathrow Airport by flight
Compare flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
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Airlines: British Airways, American Airlines from Portland International Airport to London Heathrow AirportFind the best flights between Portland International Airport to London Heathrow Airport with Omio's travel partners British Airways, American Airlines from $462 (€373). We can find you the best deals, schedules and tickets when comparing and booking the best trip.
British Airways
About
British Airways (BA) is the United Kingdom’s flag carrier airline with headquarters in London near its main hub at London Heathrow Airport (LHR). BA is the second largest UK-based airline in terms of fleet size and number of passengers carried. Known as a full-service global airline, British Airways offers year-round low fares to destinations worldwide and flies to and from centrally-located airports. Its extensive global route network includes more than 170 destinations in nearly 80 countries throughout Europe, North America, South America, Asia, Africa and Australia. syn p British Airways (BA) is the flag carrier airline of the United Kingdom with its headquarters in London near its main hub at London Heathrow Airport (LHR). Known as a full-service global airline, BA offers low fares year-round to destinations around the globe and flies to and from centrally-located airports. Its extensive global route network includes more than 170 destinations in nearly 80 countries throughout Europe, North America, South America, Asia, Africa and Australia. BA is also the second largest airline based in the UK in terms of its fleet size and number of passengers carried.
Luggage & cancellation policy
Average Duration
14h 45m
Cheapest Price
$565 (€456)
British Airways frequency
11 a day
Luggage included
Economy Basic includes 1 cabin bag (max 23kg, 56x45x25cm) plus 1 personal item (40x30x15cm)
Additional luggage
Additional checked bags can be purchased, with prices varying by route and fare class
Cancellation Policy
Cancellation policy depends on ticket type - Basic tickets non-refundable, Flexible tickets can be cancelled for a full refund
Pregnant on board
Travel permitted until end of 36th week for single pregnancies, end of 32nd week for multiple pregnancies. Medical clearance required after 28th weeks
Unaccompagned minor
Young flyers aged 5-11 can travel alone using British Airways' Skyflyer Solo service. Service must be booked in advance and is available on most routes
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
British Airways provides assistance for passengers with reduced mobility, including wheelchair assistance and special assistance through airports.
Pets
Pets travel in the hold except assistance dogs. Advance booking required. Only cats and dogs accepted on most routes
Entertaiment on board
American Airlines
About
American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.
Luggage & cancellation policy
Average Duration
14h 50m
Cheapest Price
$489 (€395)
American Airlines frequency
7 a day
Luggage included
1 carry-on bag (22 x 14 x 9 inches) and 1 personal item (18 x 14 x 8 inches) included in most fares
Additional luggage
Checked bags fees vary by route. First checked bag typically $30, second $40 on domestic flights
Cancellation Policy
Basic Economy tickets cannot be changed or refunded. Other fares allow changes with fee, refunds subject to fare rules.
Pregnant on board
Passengers can fly up to 36 weeks for single pregnancies, 32 weeks for multiple pregnancies. Medical certificate required within 7 days of departure if within 4 weeks of due date.
Unaccompagned minor
Children ages 5-14 can travel alone using American Airlines Unaccompanied Minor Service. Service fee is $150 each way.
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
American Airlines provides wheelchair assistance and special services for passengers with disabilities. Assistance must be requested at least 48 hours before departure.
Pets
Small dogs and cats allowed in cabin for $125 fee. Must be in approved carrier under seat. Service animals allowed.
Entertaiment on board
FAQs: Portland International Airport to London Heathrow Airport Flight
Find answers to the most common questions about traveling from Portland International Airport to London Heathrow Airport by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at London Heathrow Airport, this guide helps you travel smarter and with confidence.
The cheapest month to travel from Portland International Airport, OR (PDX) to London Heathrow Airport (LHR) by plane is October.
Since neither Portland International Airport, OR (PDX) nor London Heathrow Airport (LHR) are in the Schengen Area, passport requirements depend on the specific immigration rules of USA and United Kingdom. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is a time difference of 8 h between Portland International Airport, OR (PDX) and London Heathrow Airport (LHR) all year round.
The best events to attend in London Heathrow Airport (LHR) include:
- Notting Hill Carnival, a colorful celebration of Caribbean culture with parades and music
- London Fashion Week, a major event showcasing the latest trends in fashion
- The Thames Festival, a riverside festival featuring arts, music, and food along the Thames
- New Year's Day Parade, a grand parade featuring marching bands and performers to ring in the new year.
The best holidays to experience in London Heathrow Airport (LHR) include:
- Easter, mild spring weather and blooming flowers
- May Bank Holiday, pleasant temperatures and outdoor activities
- Late Summer Bank Holiday, warm weather perfect for exploring parks and attractions
- Christmas, festive decorations and holiday spirit throughout the city.
The best seasons to visit London Heathrow Airport (LHR) are Spring or Summer. The best weather to explore London Heathrow Airport (LHR) is during May-June or September-October.
For international flights we recommend to arrive 2.5 to 3 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e. G. 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs).
Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you.
Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you.
Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.
Most popular flights to and from London Heathrow Airport and Portland International Airport
Most popular flights to London Heathrow Airport
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