Cheap flights from London to Oregon from $398

The month of April is, on average, the cheapest month to fly to Oregon from London, with most prices found around $369. The month of June is another great option to travel to Oregon, with average flight prices from London averaging around $470.

On average, the least expensive day to fly to Oregon from London is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $854. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Oregon is Saturday, with ticket prices averaging around $1,590.

According to our data, the cheapest time of day to fly to Oregon is at noon. momondo users have found flights departing from London to Oregon at noon for as low as $854. 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 Oregon are more costly in the afternoon, with an average ticket price of $1,224. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Heathrow to Portland for the best London - Oregon flight prices

You are more likely to see cheaper flights to Oregon from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Oregon for around $973 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oregon from London for as low as $816 on momondo.

There are 3 cabin classes available to choose from on London to Oregon flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

SWISS, Lufthansa, and Virgin Atlantic are the most popular carriers operating from London to Oregon

American Airlines, British Airways and United Airlines are the top three most popular airlines that fly to Oregon from London according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Oregon. Keep in mind that there are 3 different airlines that fly to Oregon on a routine basis, so you have a few additional options to choose from.

The number of flights available between London and Oregon is 7 per day as of June 2026. The most frequent departure time is 3:00PM, with 100% of daily flights leaving in the afternoon.

The number of flights available between London and Oregon is 49 per week as of June 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.