The cheapest times to fly from SEN to PDX are

  • January 8th to February 4th
  • March 5th to March 25th (except the week of March 12th)
  • April 9th to June 3rd
  • July 2nd to August 5th (except the week of July 23rd)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SEN to PDX is early to mid May. Prices can be as high as $4533 for Saturday flights during late December, or as low as $712 for Monday flights around early to mid May.


When to Fly to Portland

Flying from Southend-On-Sea (SEN) to Portland, OR (PDX) will usually cost between $785 to $2003 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid May with an average ticket price of $832. Due to high demand the most expensive time to fly is late December, with an average price of $2014. Planning your trip to low-cost times can easily save you $1182 on economy flights and even more on first-class flights. Generally, any price below $1054 can be considered a good price for a round-trip SEN to PDX flight.

See below for a graph of average weekly prices for the SEN to PDX route. All prices are for round-trip tickets in USD.

SEN to PDX Flight Prices

Compared to other flights, the SEN to PDX flight is priced close to the average and costs less than the average flight leaving from London. The average price per mile (for a direct flight) is $0.13, which is far below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to PDX, and Wednesday the cheapest day to fly back into SEN. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $929 (37%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $1040. Return trip prices are from the PDX to SEN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SEN to PDX can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 9 hour 51 minutes may not be realistic.


Flight Hacking SEN to PDX

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SEN to PDX — but Champion Traveler does!

Hack #1: Dublin (SEN > DUB > PDX)

  • Price for both tickets: $572
  • Average savings: $482 (45.73%)

See SEN to ABZ flights

Hack #2: Aberdeen (SEN > ABZ > PDX)

  • Price for both tickets: $774
  • Average savings: $280 (26.57%)

See SEN to DUB flights

Hack #3: Amsterdam (SEN > AMS > PDX)

  • Price for both tickets: $847
  • Average savings: $207 (19.64%)

See SEN to AMS flights


Flight Questions Answered

Still have questions about flying from SEN to PDX? We’ve got answers.

Which airlines fly this route?

You can find 8 major airlines flying this route most often: Aer Lingus, Air France, Alaska, Delta, Kenya Airways, KLM, Loganair, United, and potentially more during busy seasons.

How far away is it from Portland International Airport to Southend Airport?

The distance between the two airports is roughly 4924 miles or 7924 kilometers.

How long does it take to fly from SEN to PDX?

The real-world flight time for a nonstop SEN to PDX flight is about 9 hour 51 minutes.

How many flights go between Southend-On-Sea and Portland, OR?

It depends on the day of the week and the date, but a typical day might have around 26 available flights from SEN to PDX.


Airport Location Info


Departing Airport

Origination code SEN
Origination airport name Southend Airport
City Southend-On-Sea
Country the United Kingdom
Latitude 51.6
Longitude 0.7

Return Airport

Destination code PDX
Destination airport name Portland International Airport
City Portland, OR
Country the United States
Latitude 45.6
Longitude -122.6


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.