The cheapest times to fly from PSC to STN are

  • April 2nd to May 27th
  • June 18th to October 21st

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 PSC to STN is early October. Prices can be as high as $12800 for Thursday flights during mid December, or as low as $960 for Tuesday flights around early October.


When to Fly to London

Flying from Pasco/Kennewick/Richland, WA (PSC) to London (STN) will usually cost between $1132 to $6204 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early October with an average ticket price of $1085. Due to high demand the most expensive time to fly is mid December, with an average price of $6292. Planning your trip to low-cost times can easily save you $5207 on economy flights and even more on first-class flights. Generally, any price below $3841 can be considered a good price for a round-trip PSC to STN flight.

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

PSC to STN Flight Prices

Compared to other flights, the PSC to STN flight is more expensive than the average and costs more than the average flight leaving from Pasco. The average price per mile (for a direct flight) is $0.5, which is above average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Thursdays are the most expensive days to fly to London, and Sundays are the most expensive days to return to Pasco. Selecting flights on the least expensive days could save you up to $1095 (24%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $3137. Return trip prices are from the STN to PSC 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 PSC to STN can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 9 hour 33 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from PSC to STN while comparing.

Destination alternative #1: London Heathrow Airport (LHR) in London

  • 41 miles (66 km) away from STN
  • Usually 71.57% less expensive than STN
  • 1-layover flights available

See PSC to LHR flights


Flight Hacking PSC to STN

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 PSC to STN — but Champion Traveler does!

Hack #1: San Francisco, CA (PSC > SFO > STN)

  • Price for both tickets: $979
  • Average savings: $2862 (74.51%)

See PSC to SFO flights

Hack #2: Seattle, WA (PSC > SEA > STN)

  • Price for both tickets: $988
  • Average savings: $2853 (74.27%)

See PSC to SEA flights

Hack #3: Prague (PSC > PRG > STN)

  • Price for both tickets: $1002
  • Average savings: $2839 (73.91%)

See PSC to PRG flights


Flight Questions Answered

Still have questions about flying from PSC to STN? We’ve got answers.

Which airlines fly this route?

You can find 12 major airlines flying this route most often: Air Canada, Air France, Alaska, Delta, Eurowings, KLM, Lufthansa, SAS, Singapore Airlines, SWISS, United, Wideroe, and potentially more during busy seasons.

How far away is it from London Stansted Airport to Tri Cities Airport?

The distance between the two airports is roughly 4763 miles or 7665 kilometers.

How long does it take to fly from PSC to STN?

The real-world flight time for a nonstop PSC to STN flight is about 9 hour 33 minutes.

How many flights go between Pasco/Kennewick/Richland, WA and London?

It depends on the day of the week and the date, but a typical day might have around 57 available flights from PSC to STN.


Airport Location Info


Departing Airport

Origination code PSC
Origination airport name Tri Cities Airport
City Pasco/Kennewick/Richland, WA
Country the United States
Latitude 46.3
Longitude -119.1

Return Airport

Destination code STN
Destination airport name London Stansted Airport
City London
Country the United Kingdom
Latitude 51.9
Longitude 0.2


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.