$495 Find Cheap Flights from Glasgow to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Glasgow to Washington departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to Washington, as well as popular online travel agencies
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Cheap Flights from Glasgow to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle1 stop$652
Seattle
Seattle1 stop$652

Book Cheap Glasgow to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Glasgow to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Glasgow to Washington

Mon, Sep 15 - Mon, Sep 22
 Logo
8:30 am - 5:50 pmGLA-SEA
17h 20m1 stop
 Logo
7:35 pm - 10:10 pmSEA-GLA
18h 35m1 stop
Tue, Sep 16 - Tue, Sep 23
Icelandair Logo
2:20 pm - 8:40 pmGLA-SEA
14h 20m1 stop
Icelandair Logo
3:45 pm - 1:25 pmSEA-GLA
13h 40m1 stop
$667Icelandair
Find Deal
Mon, Sep 15 - Wed, Sep 24
British Airways Logo
5:50 am - 11:35 amGLA-SEA
13h 45m1 stop
British Airways Logo
1:30 pm - 10:20 amSEA-GLA
12h 50m1 stop
$720British Airways
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Mon, Sep 22 - Thu, Oct 9
American Airlines Logo
5:50 am - 11:35 amGLA-SEA
13h 45m1 stop
American Airlines Logo
1:30 pm - 9:40 amSEA-GLA
12h 10m1 stop
$730American Airlines
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Sun, Sep 21 - Mon, Oct 6
British Airways Logo
8:25 pm - 11:35 amGLA-SEA
23h 10m1 stop
British Airways Logo
8:20 pm - 4:25 pmSEA-GLA
12h 05m1 stop
$732British Airways
Find Deal
Mon, Sep 15 - Mon, Sep 22
Virgin Atlantic Logo
6:00 am - 7:00 pmGLA-SEA
21h 00m2 stops
Virgin Atlantic Logo
5:40 pm - 11:10 pmSEA-GLA
21h 30m1 stop
$741Virgin Atlantic
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Mon, Sep 15 - Wed, Sep 24
Delta Logo
6:00 am - 7:00 pmGLA-SEA
21h 00m2 stops
Delta Logo
2:10 pm - 1:00 pmSEA-GLA
14h 50m1 stop
$746Delta
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Mon, Sep 15 - Wed, Sep 24
Delta Logo
6:00 am - 7:00 pmGLA-SEA
21h 00m2 stops
Delta Logo
11:46 am - 4:10 pmSEA-GLA
20h 24m2 stops
$751Delta
Find Deal
Fri, Sep 19 - Thu, Oct 9
American Airlines Logo
5:50 am - 11:35 amGLA-SEA
13h 45m1 stop
American Airlines Logo
1:30 pm - 9:40 amSEA-GLA
12h 10m1 stop
$770American Airlines
Find Deal
Mon, Sep 15 - Mon, Sep 22
Virgin Atlantic Logo
6:00 am - 11:20 amGLA-PDX
13h 20m1 stop
Virgin Atlantic Logo
1:15 pm - 4:10 pmPDX-GLA
18h 55m1 stop
$850Virgin Atlantic
Find Deal
Booking Insights

KAYAK's insights & trends for Glasgow to Washington flights

Get data-powered insights and trends into flights from Glasgow to Washington to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Glasgow Intl Airport to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Glasgow Intl Airport to Washington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Glasgow Intl Airport to Washington is February, when tickets cost $717 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $1,097 and $1,020 respectively.

What’s the cheapest day of the week to fly from Glasgow to Washington?

The average price of all round-trip flights from Glasgow Intl Airport to Washington clicked on KAYAK for each day over the last 12 months.

When flying from Glasgow to Washington, you should consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to Glasgow, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

How far in advance should I book a flight from Glasgow Intl Airport to Washington?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Glasgow Intl Airport to Washington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Glasgow Intl Airport to Washington, you should book around 2 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.


Good to know

Low seasonJanuary
Cheapest flight$495
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Glasgow to Seattle

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Glasgow to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Glasgow to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Glasgow to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Glasgow to Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Glasgow to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Glasgow to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Glasgow to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Glasgow to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington?

    The cheapest time of day to fly to Washington is generally in the afternoon, when round-trip flights cost $924 on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,024.

Reviews of the top airline flying from Glasgow to Washington

 
See real verified KAYAK customer reviews for airlines flying from Glasgow to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Glasgow to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.6
British AirwaysOverall score based on 7224 reviews
6.9Boarding
6.7Comfort
7.6Crew
6.4Entertainment
6.3Food
Airline reviews

Everything about the flight check-in was smooth no line the plane is clean and bathroom

10.0 ExcellentAnonymous, Jul 2025LHR - BWI
Read more British Airways reviews

Everything about the flight check-in was smooth no line the plane is clean and bathroom

Excellent everywhere but Philly, the most rotten airport in the world.

Check in was not the greatest as had to talk to an agent to clarify things and then he transferred us to another agent who had difficulty processing my credit card as there was a system glitch and not a card error.

I was put into business class. Wow! My flight attendant was great! The food amazing’

The gate at London Gatwick had confusing signs for the different zones and the staff seemed harried because people didn't know when it was their turn to come to the desk. Plus, with there were too many carry-on bag travelers, myself included. The charge scheme for checking bags is frustrating. If you travel light, you want the freedom to leave as soon as you deplane. When you are forced to gate-check your bag simply because the flight is fully booked, you lose whatever time you'd hoped to save because you're still stuck waiting for your bag to come off the conveyor belt.

Not so good with their baggage handling as they damaged one of my check in luggage

All went well on the flight, not happy of course with having to pay for a seat and in hold luggage of £50

We never made it onto this flight due to BA's lackluster organisation.

The air hostess were good, cheerful, but I didn't like the boarding. My son and I initially bought our flight tickets, making sure it included 1 luggage and a carry on. Tickets were purchased for British airlines, but we were merged with American Airlines. At checking in our languages, we were told, we don't have luggage prepaid so we had to pay extra $125 each and almost £60 on our way back. I think that's unfair.

Economy seats are so small and compacted so close together that comfort is negatively affected, especially on long flights. However that is due to aircraft design, not anything the airline can do about it.

Everything you need to know for your flight from Glasgow to Washington

Information on your arrival and departure airports

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