The cheapest times to fly from SWF to LHR are

  • February 12th to March 4th
  • July 30th to January 7th

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 SWF to LHR is mid to late September. Prices can be as high as $15900 for Saturday flights during early to mid May, or as low as $3974 for Monday flights around mid to late September.


When to Fly to London

Flying from Newburgh/Poughkeepsie, NY (SWF) to London (LHR) will usually cost between $4198 to $14300 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $4214. Due to high demand the most expensive time to fly is early to mid May, with an average price of $13579. Planning your trip to low-cost times can easily save you $9364 on economy flights and even more on first-class flights. Generally, any price below $7715 can be considered a good price for a round-trip SWF to LHR flight.

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

SWF to LHR Flight Prices

Compared to other flights, the SWF to LHR flight is more expensive than the average and costs more than the average flight leaving from Newburgh. The average price per mile (for a direct flight) is $1.4, which is above average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to LHR, and Saturday the cheapest day to fly back into SWF. Saturdays are the most expensive days to fly to London, and Fridays are the most expensive days to return to Newburgh. Selecting flights on the least expensive days could save you up to $992 (10%) 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 $7648. Return trip prices are from the LHR to SWF 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 SWF to LHR can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 7 hour 8 minutes may not 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 not usually a nonstop flight from SWF to LHR while comparing.

Destination alternative #1: Southend Airport (SEN) in Southend-On-Sea

  • 50 miles (80 km) away from LHR
  • Usually 40.75% less expensive than LHR
  • Nonstop flights available

See SWF to SEN flights

Destination alternative #2: London Gatwick Airport (LGW) in London

  • 25 miles (40 km) away from LHR
  • Usually 21.01% less expensive than LHR
  • 1-layover flights available

See SWF to LGW flights


Flight Hacking SWF to LHR

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 SWF to LHR — but Champion Traveler does!

Hack #1: Boston, MA (SWF > BOS > LHR)

  • Price for both tickets: $672
  • Average savings: $7043 (91.29%)

See SWF to BOS flights

Hack #2: Orlando, FL (SWF > MCO > LHR)

  • Price for both tickets: $765
  • Average savings: $6950 (90.09%)

See SWF to MCO flights

Hack #3: Chicago, IL (SWF > ORD > LHR)

  • Price for both tickets: $800
  • Average savings: $6915 (89.63%)

See SWF to ORD flights


Flight Questions Answered

Still have questions about flying from SWF to LHR? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Air France, American, British Airways, Delta, Finnair, KLM, and potentially more during busy seasons.

How far away is it from London Heathrow Airport to Stewart International Airport?

The distance between the two airports is roughly 3418 miles or 5501 kilometers.

How long does it take to fly from SWF to LHR?

The real-world flight time for a nonstop SWF to LHR flight is about 7 hour 8 minutes.

How many flights go between Newburgh/Poughkeepsie, NY and London?

It depends on the day of the week and the date, but a typical day might have around 34 available flights from SWF to LHR.


Airport Location Info


Departing Airport

Origination code SWF
Origination airport name Stewart International Airport
City Newburgh/Poughkeepsie, NY
Country the United States
Latitude 41.5
Longitude -74.1

Return Airport

Destination code LHR
Destination airport name London Heathrow Airport
City London
Country the United Kingdom
Latitude 51.5
Longitude -0.5


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.