Cheap flights from Seattle to London from $212
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to London departing on 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Scandinavian Airlines flights from Seattle to Cambridge
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Aer Lingus flights from Seattle to Cambridge
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How to get the cheapest flight ticket from Seattle to Cambridge
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Seattle and Cambridge?
What is the cheapest month to fly to Cambridge?
In general, January is the cheapest month to fly from Seattle to Cambridge. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $670. If you’re not able to fly to Cambridge in January, then October is your next best option. Flight prices from Seattle to Cambridge during October average around $670.
What is the cheapest Seattle/Tacoma Intl to Cambridge flight route?
Fly from Seattle/Tacoma Intl to London Heathrow for the best Seattle/Tacoma Intl - Cambridge flight prices
How far in advance should I book a flight to Cambridge?
You are more likely to see cheaper flights to Cambridge from Seattle when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to Cambridge for around $812 when searching 9 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cambridge from Seattle for as low as $740 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Cambridge flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Cambridge flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Cambridge?
Icelandair is the most popular carrier operating from Seattle/Tacoma Intl to Cambridge
What airlines fly to Cambridge?
British Airways, Delta and Virgin Atlantic are the top three most popular airlines that fly to Cambridge from Seattle according to our data. British Airways is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Cambridge. Keep in mind that there are 15 different airlines that fly to Cambridge on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to Cambridge on average per day?
21 flights are operational daily from Seattle to Cambridge as of June 2025. The most popular departure time for this route is 8:00PM, with 50% of flights per day taking off in the afternoon.
How many flights depart from Seattle to Cambridge on average per week?
As of June 2025, 148 flights take off from Seattle and land in Cambridge each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.
Cheap Seattle to Cambridge flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Cambridge
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Cambridge?
Prices for flights from Seattle/Tacoma Intl Airport to Cambridge are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Cambridge?
As of June 2025, there are 15 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Cambridge.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Cambridge?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Cambridge.
What documentation or ID do you need to fly to Cambridge?
The necessary travel and health documents for your Cambridge trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Cambridge?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Cambridge is Boeing 737-900 Passenger/BBJ3 (winglets), representing 14.44% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 12.47%, Boeing 737 MAX 9 at 11.65%, and Airbus A321neo at 9.01%.
Best airlines flying from Seattle to Cambridge
Compare and see reviews for airlines that fly from Seattle to Cambridge with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $378 | Free Cancellation | Rating 6.7 7,139 reviews | |||
| PriceFrom $503 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom $532 | Free Cancellation | Rating 7.3 1,387 reviews | |||
| PriceFrom $550 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $579 | Free Cancellation | Rating 7.0 2,776 reviews | |||
| PriceFrom $583 | Free Cancellation | Rating 7.1 1,117 reviews | |||
| PriceFrom $597 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom $597 | Free Cancellation | Rating 7.5 1,463 reviews | |||
| PriceFrom $597 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom $611 | Free Cancellation | Rating 6.6 7,008 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Cambridge?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Cambridge for you.
Can I find flights from Seattle to Cambridge with flexible booking policies on momondo?
All flight searches from Seattle to Cambridge on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Seattle to Cambridge?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cambridge from Seattle.
I’m not ready to book a flight from Seattle to Cambridge right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Seattle to Cambridge now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Cambridge and let you know when they change.