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

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

What airlines fly to Seattle?

Alaska Airlines, United Airlines and American Airlines are the top three most popular airlines that fly to Seattle from Trenton, New Jersey according to our data. Alaska Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Trenton-Mercer Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

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

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport 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.

$240 Cheap Flights from Trenton, New Jersey to Seattle in 2026/27

Find the cheapest flights from Trenton, New Jersey to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:52 pm - 3:22 pmTTN Trenton-Mercer-SEA Seattle/Tacoma Intl

20h 30m2 stops Tampa Denver Intl

4:37 pm - 10:34 amSEA Seattle/Tacoma Intl-TTN Trenton-Mercer

14h 57m2 stops Denver Intl Orlando

$561Frontier

Sun, Nov 22 - Thu, Nov 26

9:52 pm - 3:22 pmTTN Trenton-Mercer-SEA Seattle/Tacoma Intl

20h 30m2 stops Tampa Denver Intl

4:58 pm - 10:13 amSEA Seattle/Tacoma Intl-TTN Trenton-Mercer

14h 15m2 stops Denver Intl Orlando

$619Frontier

Sun, Nov 22 - Wed, Dec 2

9:52 pm - 3:22 pmTTN Trenton-Mercer-SEA Seattle/Tacoma Intl

20h 30m2 stops Tampa Denver Intl

1:52 pm - 10:13 amSEA Seattle/Tacoma Intl-TTN Trenton-Mercer

17h 21m2 stops Los Angeles Orlando

$654Frontier

Tue, Nov 24 - Mon, Nov 30

11:03 am - 9:53 pmTTN Trenton-Mercer-SEA Seattle/Tacoma Intl

13h 50m1 stop Orlando

3:29 pm - 10:18 amSEA Seattle/Tacoma Intl-TTN Trenton-Mercer

15h 49m1 stop Orlando

$699Multiple Airlines

Thu, Dec 3 - Wed, Dec 9

9:52 pm - 3:22 pmTTN Trenton-Mercer-SEA Seattle/Tacoma Intl

20h 30m2 stops Tampa Denver Intl

1:52 pm - 10:34 amSEA Seattle/Tacoma Intl-TTN Trenton-Mercer

17h 42m2 stops Los Angeles Orlando

$777Frontier

Mon, Nov 23 - Fri, Nov 27

8:01 pm - 3:12 pmTTN Trenton-Mercer-SEA Seattle/Tacoma Intl

46h 11m3 stops Orlando Atlanta Hartsfield-Jackson Denver Intl

6:30 pm - 8:57 pmSEA Seattle/Tacoma Intl-TTN Trenton-Mercer

23h 27m2 stops Minneapolis St Paul Tampa

$841Multiple Airlines

Mon, Nov 16 - Fri, Nov 20

9:52 pm - 10:27 amTTN Trenton-Mercer-SEA Seattle/Tacoma Intl

15h 35m1 stop Tampa

9:29 pm - 11:15 amSEA Seattle/Tacoma Intl-TTN Trenton-Mercer

10h 46m1 stop Fort Lauderdale

$856Multiple Airlines

Sat, Nov 21 - Sat, Dec 5

9:52 pm - 10:27 amTTN Trenton-Mercer-SEA Seattle/Tacoma Intl

15h 35m1 stop Tampa

8:20 am - 8:57 pmSEA Seattle/Tacoma Intl-TTN Trenton-Mercer

9h 37m1 stop Tampa

$863Multiple Airlines

Mon, Nov 23 - Fri, Nov 27

9:16 pm - 12:22 pmTTN Trenton-Mercer-SEA Seattle/Tacoma Intl

18h 06m2 stops Tampa Denver Intl

6:25 pm - 11:01 amSEA Seattle/Tacoma Intl-TTN Trenton-Mercer

13h 36m2 stops Las Vegas Harry Reid Intl Orlando

$903Frontier

Sun, Dec 20 - Mon, Dec 28

11:19 am - 9:59 pmTTN Trenton-Mercer-SEA Seattle/Tacoma Intl

13h 40m1 stop Orlando

3:30 pm - 10:34 amSEA Seattle/Tacoma Intl-TTN Trenton-Mercer

16h 04m1 stop Orlando

$909Multiple Airlines

Sat, Nov 21 - Mon, Nov 23

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Frontier flights from Trenton, New Jersey to Seattle

Our best Frontier deals on Trenton, New Jersey to Seattle flight tickets

Frontier

Nov 22

TTN9:52 pmTrenton-Mercer

20h 30m

2 stops

SEA3:22 pmSeattle/Tacoma Intl

Nov 26

SEA4:37 pmSeattle/Tacoma Intl

14h 57m

2 stops

TTN10:34 amTrenton-Mercer

$561

Frontier

Nov 22

TTN9:52 pmTrenton-Mercer

20h 30m

2 stops

SEA3:22 pmSeattle/Tacoma Intl

Dec 2

SEA4:58 pmSeattle/Tacoma Intl

14h 15m

2 stops

TTN10:13 amTrenton-Mercer

$619

Frontier

Nov 24

TTN9:52 pmTrenton-Mercer

20h 30m

2 stops

SEA3:22 pmSeattle/Tacoma Intl

Nov 30

SEA1:52 pmSeattle/Tacoma Intl

17h 21m

2 stops

TTN10:13 amTrenton-Mercer

$654

momondo Fare Finder

Use the filters below to find and compare flights from Trenton, New Jersey to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TrentonSeattle

TTN Trenton-Mercer - SEA Seattle/Tacoma Intl

TTNSEA

Trenton-Mercer

Sun 11/22

9:52 pm-3:22 pm

2 stops20h 30m

Seattle/Tacoma Intl

Thu 11/26

4:37 pm-10:34 am

2 stops14h 57m

$561

TrentonSeattle

TTN Trenton-Mercer - SEA Seattle/Tacoma Intl

TTNSEA

Trenton-Mercer

Sun 11/22

9:52 pm-3:22 pm

2 stops20h 30m

Seattle/Tacoma Intl

Wed 12/2

4:58 pm-10:13 am

2 stops14h 15m

$619

TrentonSeattle

TTN Trenton-Mercer - SEA Seattle/Tacoma Intl

TTNSEA

Trenton-Mercer

Tue 11/24

9:52 pm-3:22 pm

2 stops20h 30m

Seattle/Tacoma Intl

Mon 11/30

1:52 pm-10:13 am

2 stops17h 21m

$654

TrentonSeattle

TTN Trenton-Mercer - SEA Seattle/Tacoma Intl

TTNSEA

Trenton-Mercer

Thu 12/3

11:03 am-9:53 pm

1 stop13h 50m

Seattle/Tacoma Intl

Wed 12/9

3:29 pm-10:18 am

1 stop15h 49m

$699

TrentonSeattle

TTN Trenton-Mercer - SEA Seattle/Tacoma Intl

TTNSEA

Trenton-Mercer

Mon 11/23

9:52 pm-3:22 pm

2 stops20h 30m

Seattle/Tacoma Intl

Fri 11/27

1:52 pm-10:34 am

2 stops17h 42m

$777

TrentonSeattle

TTN Trenton-Mercer - SEA Seattle/Tacoma Intl

TTNSEA

Trenton-Mercer

Mon 11/16

8:01 pm-3:12 pm

3 stops46h 11m

Seattle/Tacoma Intl

Fri 11/20

6:30 pm-8:57 pm

2 stops23h 27m

$841

TrentonSeattle

TTN Trenton-Mercer - SEA Seattle/Tacoma Intl

TTNSEA

Trenton-Mercer

Sat 11/21

9:52 pm-10:27 am

1 stop15h 35m

Seattle/Tacoma Intl

Sat 12/5

9:29 pm-11:15 am

1 stop10h 46m

$856

Quickest round-trip

TrentonSeattle

TTN Trenton-Mercer - SEA Seattle/Tacoma Intl

TTNSEA

Trenton-Mercer

Mon 11/23

9:52 pm-10:27 am

1 stop15h 35m

Seattle/Tacoma Intl

Fri 11/27

8:20 am-8:57 pm

1 stop9h 37m

$863

TrentonSeattle

TTN Trenton-Mercer - SEA Seattle/Tacoma Intl

TTNSEA

Trenton-Mercer

Sun 12/20

9:16 pm-12:22 pm

2 stops18h 06m

Seattle/Tacoma Intl

Mon 12/28

6:25 pm-11:01 am

2 stops13h 36m

$903

TrentonSeattle

TTN Trenton-Mercer - SEA Seattle/Tacoma Intl

TTNSEA

Trenton-Mercer

Sat 11/21

11:19 am-9:59 pm

1 stop13h 40m

Seattle/Tacoma Intl

Mon 11/23

3:30 pm-10:34 am

1 stop16h 04m

$909

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 Trenton, New Jersey to Seattle

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

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Trenton, New Jersey is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $470. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Trenton, New Jersey because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $556.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Trenton, New Jersey in the evening is the least expensive time of day to depart. momondo users have found prices as low as $465 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $580. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Trenton, New Jersey to Seattle

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

Estimated round-trip price

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

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

Best Price Found	$240
Fastest flight time	12h 53m
Direct flights	None

The best one-way flight to Seattle from Trenton, New Jersey in the past 72 hours is $240. The best round-trip flight deal from Trenton, New Jersey to Seattle found on momondo in the last 72 hours is $561.

The fastest flight from Trenton, New Jersey to Seattle takes 12h 53m

There are no direct flights from Trenton, New Jersey to Seattle. There are no popular flight routes from Trenton, New Jersey to Seattle.

Search flight deals

Frequently asked questions about flying from Trenton, New Jersey to Seattle

How far is Trenton-Mercer to Seattle/Tacoma Intl by plane?
The straight-line distance from Trenton-Mercer to Seattle/Tacoma Intl is 2381.8 mi. Flights usually cover this in 12h 53m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Trenton-Mercer Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Trenton-Mercer Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How old do you have to be to fly from Trenton-Mercer Airport to Seattle/Tacoma Intl 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 Trenton-Mercer Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport 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.

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Trenton to Seattle. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Seattle from Trenton which offer a flexible booking policy as well as other useful filters and features.

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

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 Seattle from Trenton.

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

Price alerts on flights to Seattle from Trenton are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.