What airlines fly to Cambridge?

Delta, British Airways and Virgin Atlantic are the top three most popular airlines that fly to Cambridge from Seattle according to our data. Delta 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 14 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?

8 flights are operational daily from Seattle to Cambridge as of March 2026. The most popular departure time for this route is 7:00PM, with 50% of flights per day taking off in the afternoon.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Cambridge?

Icelandair and WestJet are the most popular carriers operating from Seattle/Tacoma Intl to Cambridge

How many flights depart from Seattle to Cambridge on average per week?

As of March 2026, 56 flights take off from Seattle and land in Cambridge each week. The most common flight departure day for this route is Sat, with 36% of weekly flights taking off on this day.

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 March 2026, there are 14 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.

$418 Cheap Flights from Seattle to Cambridge in 2026

Q: What is the typical price of a round-trip flight between Seattle and Cambridge?

Prices are currently low for flights on this route. Typical prices usually range from $789 to $630. The lowest price recently found on this route was $618.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to London

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:40 pm - 5:15 pm

SEA

STN

17h 35m

2 stops

6:30 am - 6:45 pm

STN

SEA

20h 15m

2 stops

$618Multiple Airlines

Sun, Apr 26 - Tue, May 12

7:00 pm - 10:20 pm

SEA

LGW

19h 20m

2 stops

6:25 am - 8:40 pm

LGW

SEA

22h 15m

2 stops

$619Multiple Airlines

Tue, Apr 14 - Tue, Apr 21

3:40 pm - 10:25 pm

SEA

STN

22h 45m

2 stops

12:20 am - 8:40 pm

STN

SEA

28h 20m

3 stops

$623Multiple Airlines

Mon, Apr 20 - Mon, Apr 27

7:00 pm - 9:20 am

SEA

LHR

30h 20m

3 stops

6:40 am - 8:40 pm

LHR

SEA

22h 00m

2 stops

$623Multiple Airlines

Fri, Apr 24 - Mon, Apr 27

3:55 pm - 5:00 pm

SEA

LHR

41h 05m

2 stops

7:30 pm - 1:45 pm

LHR

SEA

26h 15m

1 stop

$636Scandinavian Airlines

Sat, May 23 - Mon, May 25

7:00 pm - 8:20 pm

SEA

LHR

17h 20m

1 stop

9:25 pm - 5:55 pm

LHR

SEA

28h 30m

1 stop

$653Icelandair

Tue, Apr 21 - Wed, Apr 29

7:00 pm - 8:20 pm

SEA

LHR

17h 20m

1 stop

1:05 pm - 8:40 pm

LHR

SEA

15h 35m

1 stop

$697Icelandair

Sun, Apr 26 - Tue, May 12

5:40 pm - 7:15 am

SEA

LCY

29h 35m

1 stop

10:00 am - 4:27 pm

LCY

SEA

14h 27m

1 stop

$833Delta

Wed, Jul 29 - Thu, Aug 27

2:10 pm - 5:55 pm

SEA

LCY

19h 45m

1 stop

9:15 am - 4:59 pm

LCY

SEA

15h 44m

2 stops

$838Lufthansa

Wed, Apr 22 - Wed, Apr 29

1:55 pm - 5:55 pm

SEA

LCY

20h 00m

2 stops

9:15 am - 4:59 pm

LCY

SEA

15h 44m

2 stops

$842Lufthansa

Wed, Aug 5 - Tue, Aug 25

Icelandair flights from Seattle to Cambridge

Our best Icelandair deals on Seattle to Cambridge flight tickets

Icelandair

Apr 21

SEA7:00 pmSeattle/Tacoma Intl

17h 20m

1 stop

LHR8:20 pmLondon Heathrow

Apr 29

LHR9:25 pmLondon Heathrow

28h 30m

1 stop

SEA5:55 pmSeattle/Tacoma Intl

$653

Icelandair

Apr 26

SEA7:00 pmSeattle/Tacoma Intl

17h 20m

1 stop

LHR8:20 pmLondon Heathrow

May 12

LHR1:05 pmLondon Heathrow

15h 35m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

$697

Icelandair

Apr 26

SEA3:40 pmSeattle/Tacoma Intl

12h 15m

1 stop

LHR11:55 amLondon Heathrow

May 12

LHR1:05 pmLondon Heathrow

15h 35m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

$698

Lufthansa flights from Seattle to Cambridge

Our best Lufthansa deals on Seattle to Cambridge flight tickets

Lufthansa

Apr 22

SEA2:10 pmSeattle/Tacoma Intl

19h 45m

1 stop

LCY5:55 pmLondon City

Apr 29

LCY9:15 amLondon City

15h 44m

2 stops

SEA4:59 pmSeattle/Tacoma Intl

$835

Lufthansa

Apr 22

SEA2:10 pmSeattle/Tacoma Intl

19h 45m

1 stop

LCY5:55 pmLondon City

Apr 29

LCY9:15 amLondon City

15h 44m

2 stops

SEA4:59 pmSeattle/Tacoma Intl

$838

Lufthansa

Apr 23

SEA2:10 pmSeattle/Tacoma Intl

19h 45m

1 stop

LCY5:55 pmLondon City

May 5

LCY9:15 amLondon City

17h 15m

2 stops

SEA6:30 pmSeattle/Tacoma Intl

$852

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Sun 4/26

3:40 pm-5:15 pm

2 stops17h 35m

London Stansted

Tue 5/12

6:30 am-6:45 pm

2 stops20h 15m

$618

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 4/14

7:00 pm-10:20 pm

2 stops19h 20m

London Gatwick

Tue 4/21

6:25 am-8:40 pm

2 stops22h 15m

$619

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 4/20

3:40 pm-10:25 pm

2 stops22h 45m

London Stansted

Mon 4/27

12:20 am-8:40 pm

3 stops28h 20m

$623

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Fri 4/24

7:00 pm-9:20 am

3 stops30h 20m

London Heathrow

Mon 4/27

6:40 am-8:40 pm

2 stops22h 00m

$623

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sat 5/23

3:55 pm-5:00 pm

2 stops41h 05m

London Heathrow

Mon 5/25

7:30 pm-1:45 pm

1 stop26h 15m

$636

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 4/21

7:00 pm-8:20 pm

1 stop17h 20m

London Heathrow

Wed 4/29

9:25 pm-5:55 pm

1 stop28h 30m

$653

Quickest round-trip

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 4/26

7:00 pm-8:20 pm

1 stop17h 20m

London Heathrow

Tue 5/12

1:05 pm-8:40 pm

1 stop15h 35m

$697

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 7/29

5:40 pm-7:15 am

1 stop29h 35m

London City

Thu 8/27

10:00 am-4:27 pm

1 stop14h 27m

$833

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 4/22

2:10 pm-5:55 pm

1 stop19h 45m

London City

Wed 4/29

9:15 am-4:59 pm

2 stops15h 44m

$838

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 8/5

1:55 pm-5:55 pm

2 stops20h 00m

London City

Tue 8/25

9:15 am-4:59 pm

2 stops15h 44m

$842

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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, October 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 $640. If you’re not able to fly to Cambridge in October, then January is your next best option. Flight prices from Seattle to Cambridge during January average around $641.

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 weeks ahead of your departure date. In general, you can expect to find flights to Cambridge for around $777 when searching 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 $708 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.

Can stopping save me money on Seattle to Cambridge flights?

You could potentially save up to 8% on your flight if you consider stops on a Seattle to Cambridge flight.

Cheap Seattle to Cambridge flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Cambridge

Fastest flight time	9h 15m
Direct flights	Every day
Airports in Cambridge	6 airports

The fastest flight from Seattle to Cambridge takes 9h 15m

Direct flights go from Seattle to Cambridge every day.

There are 6 airports in Cambridge. From Seattle there are direct flights to London Heathrow (LHR).

Search flight deals

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 March 2026, there are 14 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 737-800 Passenger/BBJ2 (winglets), representing 16.98% of all bookings. The subsequent popular models are Airbus A321neo at 12.34%, Boeing 737 MAX 8 at 8.15%, and Boeing 787-9 Dreamliner at 7.59%.

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
Icelandair	PriceFrom $481	Free Cancellation	Rating 7.0 627 reviews	Search Icelandair flights
Aer Lingus	PriceFrom $500	Free Cancellation	Rating 7.2 1,491 reviews	Search Aer Lingus flights
American Airlines	PriceFrom $515	Free Cancellation	Rating 7.1 11,520 reviews	Search American Airlines flights
British Airways	PriceFrom $527	Free Cancellation	Rating 6.7 7,830 reviews	Search British Airways flights
Scandinavian Airlines	PriceFrom $532	Free Cancellation	Rating 7.3 1,727 reviews	Search Scandinavian Airlines flights
Air France	PriceFrom $532	Free Cancellation	Rating 7.4 1,555 reviews	Search Air France flights
United Airlines	PriceFrom $547	Free Cancellation	Rating 7.4 9,508 reviews	Search United Airlines flights
Delta	PriceFrom $556	Free Cancellation	Rating 7.9 8,359 reviews	Search Delta flights
Finnair	PriceFrom $556	Free Cancellation	Rating 7.7 1,375 reviews	Search Finnair flights
Iberia	PriceFrom $565	Free Cancellation	Rating 7.0 3,158 reviews	Search Iberia flights

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.