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Cheap flights from Seattle to New York from $382

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to New York departing on 10/2. 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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Find the cheapest flights from Seattle to New York

Cheap round-trip flights

Frontier Logo
6:12 am - 11:34 amSEA-TTN
26h 22m2 stops
Frontier Logo
10:30 am - 3:41 pmTTN-SEA
32h 11m2 stops
$382Frontier
Find Deal
Thu, Oct 2 - Sun, Oct 5

Frontier flights from Seattle to Trenton, New Jersey

Our best Frontier deals on Seattle to Trenton, New Jersey flight tickets
Frontier
Oct 2
SEA6:12 amSeattle/Tacoma Intl
26h 22m
2 stops
TTN11:34 amTrenton-Mercer
Oct 5
TTN10:30 amTrenton-Mercer
32h 11m
2 stops
SEA3:41 pmSeattle/Tacoma Intl
$382
Find similar
Frontier
Sep 24
SEA7:00 amSeattle/Tacoma Intl
23h 32m
2 stops
TTN9:32 amTrenton-Mercer
Sep 28
TTN10:30 amTrenton-Mercer
17h 00m
2 stops
SEA12:30 amSeattle/Tacoma Intl
$614
Find similar
Frontier
Sep 20
SEA7:00 amSeattle/Tacoma Intl
23h 32m
2 stops
TTN9:32 amTrenton-Mercer
Sep 22
TTN12:30 pmTrenton-Mercer
15h 00m
2 stops
SEA12:30 amSeattle/Tacoma Intl
$1,207
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Trenton, New Jersey that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Seattle to Trenton, New Jersey that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleTrenton

SEA - TTN

SEATTN

Seattle/Tacoma Intl

Thu 10/2

6:12 am-11:34 am

2 stops26h 22m

Trenton-Mercer

Sun 10/5

10:30 am-3:41 pm

2 stops32h 11m

$382

SeattleTrenton

SEA - TTN

SEATTN

Seattle/Tacoma Intl

Wed 2/11

10:00 pm-9:04 pm

2 stops20h 04m

$523

SeattleTrenton

SEA - TTN

SEATTN

Seattle/Tacoma Intl

Wed 2/18

10:00 pm-9:04 pm

2 stops20h 04m

$530

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Seattle to Trenton, New Jersey

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 cheapest airline that flies from Seattle/Tacoma Intl to Trenton-Mercer?

Frontier is the most popular carrier operating from Seattle/Tacoma Intl to Trenton-Mercer

What airlines fly to Trenton, New Jersey?

Alaska Airlines, Delta and American Airlines are the top three most popular airlines that fly to Trenton, New Jersey from Seattle according to our data. Alaska Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Trenton, New Jersey. Keep in mind that there are 10 different airlines that fly to Trenton, New Jersey on a routine basis, so you have a few additional options to choose from.

When to book flights from Seattle to Trenton, New Jersey

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Trenton, New Jersey according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Trenton, New Jersey (SEA to TTN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Trenton, New Jersey

Direct flights

None
There are no direct flights from Seattle to Trenton, New Jersey. There are no popular flight routes from Seattle to Trenton, New Jersey.
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  • How far is Seattle/Tacoma Intl to Trenton-Mercer by plane?

    A flight from Seattle/Tacoma Intl to Trenton-Mercer will travel around 2381.8 mi. Flights usually cover this in 26h 22m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Trenton-Mercer Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Trenton-Mercer Airport were last updated today.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Trenton-Mercer Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Trenton-Mercer Airport.

  • What documentation or ID do you need to fly to Trenton-Mercer Airport?

    The required travel and health documents for your Trenton-Mercer Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Trenton-Mercer Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Trenton?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Trenton from Seattle.

Can I find flights from Seattle to Trenton with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Trenton flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Trenton?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Trenton.

I’m not ready to book a flight from Seattle to Trenton right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Trenton now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Trenton and let you know when they change.

An easier way to manage your Trenton, New Jersey trip

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Fri 10/17
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