Cheap Flights Glasgow to Washington D.C. from £313

Flight FAQs

• Which airlines offer the cheapest flights from Glasgow to Washington D.C.?

  Based on Trip.com data, WestJet offers Cheapest nonstop one-way flights from £313 (for example, GLA–IAD on Sun, Oct 11). For a Cheapest nonstop return flight, Icelandair offers fares from £502, departing on Fri, Oct 23 and returning on Tue, Oct 27.

• Which airlines offer direct flights from Glasgow to Washington D.C.?

  At the moment, you can catch a direct flight from Glasgow to Washington D.C. with the following airlines, including: Air Transat Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Glasgow to Washington D.C.?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Glasgow to Washington D.C. is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Glasgow to Washington D.C.?

  Here are some tips for finding the best flight deals from Glasgow to Washington D.C. on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Sun, Oct 11, with one-way fares from just £313.
  · Compare airlines. WestJet currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. July is generally the busiest month for travel to Washington D.C..
  · Get exclusive promo codes on the Trip.com app.

• When is the best time to book a flight from Glasgow to Washington D.C. to get the best price?

  The cheapest month to book a flight from Glasgow to Washington D.C. is usually August, when demand is lower.

• Which upcoming date is the cheapest for flights from Glasgow to Washington D.C.?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Glasgow to Washington D.C. on October 20, 2026 with Air Transat, with prices starting at £355.

• Which airports should you choose for flights from Glasgow to Washington D.C.?

  Flights to Washington D.C. can arrive at: Ronald Reagan Washington National Airport (DCA) and Dulles International Airport (IAD). The most common route connects Glasgow Airport and Dulles International Airport (GLA–IAD).

• What is the time difference between Glasgow and Washington D.C.?

  The time difference between Washington D.C. and Glasgow is 5h.

• How can I change or cancel my flight ticket from Glasgow to Washington D.C.?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average price of a one-way flight from Glasgow to Washington D.C.?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Glasgow to Washington D.C. is £707. Fares vary by travel date, airline and availability.

• How do I book flights from Glasgow to Washington D.C. on Trip.com?

  Enter Glasgow and Washington D.C., choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

• Are there budget airlines on the Glasgow to Washington D.C. route?

  Air Transatare the most popular budget airlines flying from Glasgow to Washington D.C.. Check baggage, seat and payment fees before comparing the final price.