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Flights from Washington D.C. to Glasgow

Search cheap flights from Washington D.C. to Glasgow in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$297, and round-trip tickets start at US$736.

      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Sun, Sep 13 | Icelandair
        GLA 14:20
        12h 55m
        1 stop
        IAD 22:15
        Glasgow - Washington D.C. | Sat, Sep 19 | Icelandair
        US$736 US$1,039
        28% off
        28% off
        US$1,039 US$736
      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Sat, Aug 22 | Icelandair
        GLA 14:20
        10h
        1 stop
        IAD 19:20
        Glasgow - Washington D.C. | Sat, Aug 29 | Icelandair
        US$751 US$1,039
        28% off
        28% off
        US$1,039 US$751
      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Fri, Aug 28 | Icelandair
        GLA 14:20
        12h 55m
        1 stop
        IAD 22:15
        Glasgow - Washington D.C. | Tue, Sep 1 | Icelandair
        US$751 US$1,039
        28% off
        28% off
        US$1,039 US$751
      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Sun, Aug 23 | Icelandair
        GLA 14:20
        10h
        1 stop
        IAD 19:20
        Glasgow - Washington D.C. | Thu, Aug 27 | Icelandair
        US$752
        28% off
        US$1,039 US$752
      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Mon, Aug 31 | Icelandair
        GLA 14:20
        10h
        1 stop
        IAD 19:20
        Glasgow - Washington D.C. | Mon, Sep 7 | Icelandair
        US$757
        27% off
        US$1,039 US$757
      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Fri, Sep 11 | Icelandair
        GLA 14:20
        12h 55m
        1 stop
        IAD 22:15
        Glasgow - Washington D.C. | Tue, Sep 15 | Icelandair
        US$770
        26% off
        US$1,039 US$770
      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Mon, Sep 14 | Icelandair
        GLA 14:20
        10h
        1 stop
        IAD 19:20
        Glasgow - Washington D.C. | Mon, Sep 21 | Icelandair
        US$771
        26% off
        US$1,039 US$771
      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Wed, Sep 16 | Icelandair
        GLA 14:20
        10h
        1 stop
        IAD 19:20
        Glasgow - Washington D.C. | Wed, Sep 23 | Icelandair
        US$772
        26% off
        US$1,039 US$772
      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Thu, Sep 10 | Icelandair
        GLA 14:20
        10h
        1 stop
        IAD 19:20
        Glasgow - Washington D.C. | Tue, Sep 15 | Icelandair
        US$774
        26% off
        US$1,039 US$774
      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Sat, Sep 5 | Icelandair
        GLA 14:20
        10h
        1 stop
        IAD 19:20
        Glasgow - Washington D.C. | Wed, Sep 9 | Icelandair
        US$800
        23% off
        US$1,039 US$800
      • WAS 13:00
        17h 25m
        1 stop
        GLA 14:00
        Washington D.C. - Glasgow | Thu, Jul 23 | Normal Airline
        GLA 15:00
        6h
        Nonstop
        WAS 16:00
        Glasgow - Washington D.C. | Sat, Jul 25 | Normal Airline
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      • IAD 23:20
        9h 5m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Thu, Aug 6 | Icelandair
        US$297 US$655
        55% off
        55% off
        US$655 US$297
      • IAD 20:30
        11h 55m
        1 stop
        GLA 13:25
        Washington D.C. - Glasgow | Mon, Aug 24 | Icelandair
        US$356 US$655
        46% off
        46% off
        US$655 US$356
      • IAD 11:25
        17h 15m
        1 stop
        GLA 09:40
        Washington D.C. - Glasgow | Thu, Aug 6 | Porter Airlines
        US$358 US$655
        45% off
        45% off
        US$655 US$358
      • IAD 16:20
        12h 20m
        1 stop
        GLA 09:40
        Washington D.C. - Glasgow | Thu, Aug 6 | Air Canada
        US$386
        41% off
        US$655 US$386
      • IAD 12:35
        16h 35m
        1 stop
        GLA 10:10
        Washington D.C. - Glasgow | Thu, Aug 6 | United Airlines
        US$465
        28% off
        US$655 US$465
      • DCA 14:58
        10h 52m
        1 stop
        GLA 06:50
        Washington D.C. - Glasgow | Thu, Aug 6 | American Airlines
        US$477
        27% off
        US$655 US$477
      • IAD 17:40
        14h 15m
        1 stop
        GLA 12:55
        Washington D.C. - Glasgow | Thu, Aug 6 | Delta Air Lines
        US$482
        26% off
        US$655 US$482
      • IAD 17:15
        18h 35m
        1 stop
        GLA 16:50
        Washington D.C. - Glasgow | Thu, Aug 6 | Aer Lingus
        US$493
        25% off
        US$655 US$493
      • IAD 12:35
        16h 35m
        1 stop
        GLA 10:10
        Washington D.C. - Glasgow | Mon, Aug 24 | United Airlines
        US$496
        24% off
        US$655 US$496
      • IAD 17:40
        14h 15m
        1 stop
        GLA 12:55
        Washington D.C. - Glasgow | Mon, Aug 24 | Delta Air Lines
        US$504
        23% off
        US$655 US$504
      • WAS 13:00
        17h 25m
        1 stop
        GLA 14:00
        Washington D.C. - Glasgow | Thu, Jul 23 | Normal Airline
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        Find more flights

Washington D.C. to Glasgow Flight Details

The distance between Washington D.C. and Glasgow is about 5,508.49 km. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is August.

Cheapest one-way flight price US$297
Cheapest return ticket price US$736
Cheapest month August
Peak season for travel July
Flight distance 5,508.49 km
Flight statistics for the Washington D.C.–Glasgow route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Washington D.C. to Glasgow (WAS-GLA)?

    Based on Trip.com data, Icelandair offers one-way fares as low as US$297 on Cheapest nonstop routes (e.g. IAD to GLA on Thu, Aug 6), while Icelandair offers Cheapest nonstop round-trips from US$736 departing on Sun, Sep 13 and returning on Sat, Sep 19.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. to Glasgow 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.
  • To find best deals on flights from Washington D.C. to Glasgow, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Aug 6, with one-way flights priced at just US$297.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Icelandair.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Glasgow travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Washington D.C. to Glasgow is August, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Washington D.C. to Glasgow on July 26, 2026 with Icelandair, with prices starting at US$841.
  • The time difference between Glasgow and Washington D.C. is 5h.
  • Tickets can only be changed or canceled 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.

Trip.com Airline Insights on Flights from Washington D.C. to Glasgow

Which airline offers the cheapest direct flights from Washington D.C. to Glasgow?

Data is based on the average price of all nonstop flights from Washington D.C. to Glasgow on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, American Airlines provides the lowest-priced direct flights from Washington D.C. to Glasgow, with fares starting at US$514.

US$359
US$514
US$669
US$824
US$979
American Airlines
US$514
American Airlines
British Airways
US$524
British Airways
Icelandair
US$525
Icelandair
Aer Lingus
US$979
Aer Lingus

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Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.