The cheapest times to fly from IAD to LSI are

  • January 8th to March 25th
  • October 15th to December 9th (except the week of 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 LSI is early February. Prices can be as high as $1828 for Saturday flights during mid July, or as low as $801 for Wednesday flights around early February.


When to Fly to Shetland Islands

Flying from Washington, DC (IAD) to Lerwick (LSI) will usually cost between $804 to $1506 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early February with an average ticket price of $819. Due to high demand the most expensive time to fly is mid July, with an average price of $1825. Planning your trip to low-cost times can easily save you $1006 on economy flights and even more on first-class flights. Generally, any price below $863 can be considered a good price for a round-trip IAD to LSI flight.

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

IAD to LSI Flight Prices

Compared to other flights, the IAD to LSI flight is cheaper than the average and costs less than the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.15, which is far below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to fly to LSI, and Tuesday the cheapest day to fly back into IAD. 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 $188 (16%) 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 $917. Return trip prices are from the LSI to IAD 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 IAD to LSI can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 7 hour 15 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 LSI while comparing.

Destination alternative #1: Kirkwall Airport (KOI) in Kirkwall

  • 85 miles (137 km) away from LSI
  • Usually 0.12% less expensive than LSI
  • 2-layover flights available

See IAD to KOI flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 4 major airlines flying this route most often: British Airways, Loganair, Lufthansa, United, and potentially more during busy seasons.

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

The distance between the two airports is roughly 3483 miles or 5605 kilometers.

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

The real-world flight time for a nonstop IAD to LSI flight is about 7 hour 15 minutes.

How many flights go between Washington, DC and Lerwick?

It depends on the day of the week and the date, but a typical day might have around 19 available flights from IAD to LSI.


Airport Location Info


Departing Airport

Origination codeIAD
Origination airport nameWashington Dulles International Airport
CityWashington, DC
Countrythe United States

Return Airport

Destination codeLSI
Destination airport nameSumburgh Airport
Countrythe United Kingdom


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.