iad-to-sou

 

The cheapest times to fly from IAD to SOU are

  • January 1st to March 18th (except the week of March 5th)
  • September 17th to October 7th
  • October 22nd to December 9th (except the weeks of October 29th and November 19th)

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 IAD to SOU is early to mid January. Prices can be as high as $2584 for Saturday flights during mid July, or as low as $645 for Wednesday flights around early to mid January.

 

When to Fly to Southampton

Flying from Washington, DC (IAD) to Southampton (SOU) will usually cost between $682 to $1953 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid January with an average ticket price of $756. Due to high demand the most expensive time to fly is mid July, with an average price of $1850. Planning your trip to low-cost times can easily save you $1094 on economy flights and even more on first-class flights. Generally, any price below $1058 can be considered a good price for a round-trip IAD to SOU flight.

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

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IAD to SOU Flight Prices

Compared to other flights, the IAD to SOU flight is priced close to the average and costs less than the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.18, which is below average.

 

Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. 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 $489 (34%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $885. Return trip prices are from the SOU to IAD flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

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Departure Day Prices

Return Trip Prices by Day

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Return Day Prices

 

Nonstop Flights and Layovers

Travelers looking to fly from IAD to SOU 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 32 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 IAD to SOU while comparing.

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

  • 53 miles (85 km) away from SOU
  • Usually 50.95% less expensive than SOU
  • Nonstop flights available

See IAD to LHR flights

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

  • 52 miles (84 km) away from SOU
  • Usually 44.47% less expensive than SOU
  • 1-layover flights available

See IAD to LGW flights

Destination alternative #3: London City Airport (LCY) in London

  • 72 miles (116 km) away from SOU
  • Usually 38.37% less expensive than SOU
  • 1-layover flights available

See IAD to LCY flights

Destination alternative #4: Bristol Airport (BRS) in Bristol

  • 66 miles (106 km) away from SOU
  • Usually 35.54% less expensive than SOU
  • 1-layover flights available

See IAD to BRS flights

Destination alternative #5: Cardiff Airport (CWL) in Cardiff

  • 91 miles (146 km) away from SOU
  • Usually 33.08% less expensive than SOU
  • 1-layover flights available

See IAD to CWL flights

Destination alternative #6: Birmingham Airport (BHX) in Birmingham

  • 105 miles (169 km) away from SOU
  • Usually 28.36% less expensive than SOU
  • 1-layover flights available

See IAD to BHX flights

 

Flight Hacking IAD to SOU

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 IAD to SOU — but Champion Traveler does!

Hack #1: Dublin (IAD > DUB > SOU)

  • Price for both tickets: $722
  • Average savings: $337 (31.81%)

See IAD to DUB flights

Hack #2: Amsterdam (IAD > AMS > SOU)

  • Price for both tickets: $754
  • Average savings: $305 (28.78%)

See IAD to AMS flights

Hack #3: Paris (IAD > CDG > SOU)

  • Price for both tickets: $769
  • Average savings: $289 (27.32%)

See IAD to CDG flights

 

Flight Questions Answered

Still have questions about flying from IAD to SOU? We’ve got answers.

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Aer Lingus, Air France, Alitalia, American, Brussels Airlines, Delta, Finnair, KLM, Lufthansa, United, Virgin Atlantic, and potentially more during busy seasons.

How far away is it from Southampton Airport to Washington Dulles International Airport?

The distance between the two airports is roughly 3641 miles or 5860 kilometers.

How long does it take to fly from IAD to SOU?

The real-world flight time for a nonstop IAD to SOU flight is about 7 hour 32 minutes.

How many flights go between Washington, DC and Southampton?

It depends on the day of the week and the date, but a typical day might have around 10 available flights from IAD to SOU.

 

Airport Location Info

 

Departing Airport

Origination codeIAD
Origination airport nameWashington Dulles International Airport
CityWashington, DC
Countrythe United States
Latitude38.9
Longitude-77.5

Return Airport

Destination codeSOU
Destination airport nameSouthampton Airport
CitySouthampton
Countrythe United Kingdom
Latitude51
Longitude-1.4

 

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.