Flights Seattle → Glasgow
As of October 2026, economy flights from Seattle to Glasgow have a typical range USD 3756–15173, median USD 4263. Full range across all 95 offers: USD 1880–17458. We found 72% of 95 offers from budget carriers (around USD 4263) and 28% from full-service carriers (around USD 8493).
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Seattle → Glasgow
Based on 95 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Seattle → Glasgow
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Aer Lingus | — | USD 30 | — |
| Icelandair | Included | USD 30 | — |
| American Airlines | Included | Included | — |
| British Airways | Included | USD 65 | — |
| Finnair | Included | USD 30 | — |
| Iberia | — | USD 30 | — |
| Lufthansa | Included | USD 35 | — |
| Delta | Included | USD 35 | — |
| Virgin Atlantic | Included | Included | — |
| United Airlines | — | USD 35 | — |
| Alaska Airlines | — | USD 35 | — |
| KLM | Included | USD 35 | — |
| Air France | Included | USD 35 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Seattle to Glasgow cost?
Based on 95 offers · October 2026
Seattle to Glasgow flights ranged from USD 1880 to USD 17458 across 95 offers analyzed in October 2026. Two fare clusters detected: budget fares around 4216 and premium fares around 8890 The chart below shows how prices distributed across all 95 offers.
These 95 offers (October 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 4103 and USD 11075
What hidden fees do Seattle to Glasgow flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Seattle to Glasgow routes. The breakdown below is based on 95 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| EI | 38 | 1% |
| FI | 40 | 2% |
| AA | 10 | 0% |
| BA | 80 | 1% |
| AY | 31 | 1% |
| IB | 42 | 1% |
| LH | 45 | 1% |
| DL | 45 | 1% |
| VS | 20 | 0% |
| UA | 45 | 1% |
| AS | 45 | 1% |
| KL | 47 | 1% |
| AF | 47 | 0% |
British Airways: base ~USD 3882 + fees USD 80 = ~USD 3962 total. American Airlines: base ~USD 4072 + fees USD 10 = ~USD 4082 total.
British Airways's USD 80 ancillary fees narrow the gap with American Airlines's lower-fee model — the USD 190 base difference shrinks to USD 120 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.BA charges 8.0x more in ancillary fees than AA on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Seattle to Glasgow?
13 airlines flew Seattle to Glasgow in this dataset. The route shows a clear split between low-cost and full-service carriers. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Icelandair | 1 | — | 1880 | 40 (2%) |
 Aer Lingus | 3 | 3624–3711 | 3624 | 38 (1%) |
 British Airways | 15 | 3743–11272 | 3962 | 80 (2%) |
 Iberia | 2 | — | 3965 | 42 (1%) |
 American Airlines | 3 | 3810–12010 | 4082 | 10 (0%) |
 Lufthansa | 5 | 4103–5587 | 4113 | 45 (1%) |
 United Airlines | 1 | — | 4113 | 45 (1%) |
 Alaska Airlines | 1 | — | 4131 | 45 (1%) |
 Finnair | 17 | 3924–8643 | 4140 | 31 (1%) |
 Delta Air Lines | 20 | 4247–15872 | 4263 | 45 (1%) |
 KLM | 8 | 7220–12318 | 8493 | 47 (1%) |
 Virgin Atlantic | 17 | 4199–15184 | 11078 | 20 (0%) |
 Air France | 2 | 9227–15134 | 12180 | 47 (0%) |
Where do the best Seattle → Glasgow prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Seattle to Glasgow flights
- Seattle–Glasgow had 95 offers analyzed. Median price: USD 4263.
- BA charges 8.0x more in ancillary fees than AA — USD 80 vs USD 10 avg per booking.
- The same route priced USD 4775 apart depending on where it was booked — the lowest median was USD 4018. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Seattle to Glasgow cost?
- Based on 95 offers analyzed, Seattle to Glasgow flights range from USD 1880 to USD 17458, with a median price of USD 4263. Search for your specific dates →
- What hidden fees should I expect on Seattle to Glasgow flights?
- On average, ancillary fees (bags, seat selection) add USD 42 to the base fare on Seattle to Glasgow flights. See itemized fees for your itinerary →
- Which airline is cheapest on Seattle to Glasgow including all fees?
- Icelandair has the lowest median fare on Seattle to Glasgow at USD 1880 (median across 1 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Seattle–Glasgow flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 4018. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Seattle to Glasgow routes?
- Seattle to Glasgow has 13 airlines competing, creating a price range from USD 1880 to USD 17458 across 95 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
13 airlines, two price clusters — find which fits your budget
Find flights for my datesNew route — be among the first to track this itinerary
Building with flight data? Power your app or agent with LetsFG
The same multi-source search behind this page — every airline and the major booking sites, deduplicated and ranked — is available to your app or AI agent. Natural-language or structured queries, live prices, zero price bias.
Try the free sandbox — no card →Free sandbox, instant fake results · email for a key · Bearer-token auth · MCP, Python & JS SDKs · letsfg.co/developers