TTN - SEA

$240 Find Cheap Flights from Trenton to Seattle - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Trenton to Seattle (TTN-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Trenton to Seattle

Sun, Nov 22 - Thu, Nov 26
Frontier Logo
9:52 pm - 3:22 pmTTN  Trenton-Mercer-SEA Seattle/Tacoma Intl
20h 30m2 stops Tampa Denver Intl
Frontier Logo
4:37 pm - 10:34 amSEA  Seattle/Tacoma Intl-TTN Trenton-Mercer
14h 57m2 stops Denver Intl Orlando
$561Frontier
Sun, Nov 22 - Wed, Dec 2
Frontier Logo
9:52 pm - 3:22 pmTTN  Trenton-Mercer-SEA Seattle/Tacoma Intl
20h 30m2 stops Tampa Denver Intl
Frontier Logo
4:58 pm - 10:13 amSEA  Seattle/Tacoma Intl-TTN Trenton-Mercer
14h 15m2 stops Denver Intl Orlando
$619Frontier
Tue, Nov 24 - Mon, Nov 30
Frontier Logo
9:52 pm - 3:22 pmTTN  Trenton-Mercer-SEA Seattle/Tacoma Intl
20h 30m2 stops Tampa Denver Intl
Frontier Logo
1:52 pm - 10:13 amSEA  Seattle/Tacoma Intl-TTN Trenton-Mercer
17h 21m2 stops Los Angeles Orlando
$654Frontier
Thu, Dec 3 - Sat, Dec 5
Multiple Airlines Logo
11:03 am - 9:53 pmTTN  Trenton-Mercer-SEA Seattle/Tacoma Intl
13h 50m1 stop Orlando
Multiple Airlines Logo
9:29 pm - 11:15 amSEA  Seattle/Tacoma Intl-TTN Trenton-Mercer
10h 46m1 stop Fort Lauderdale
$709Multiple Airlines
Mon, Nov 23 - Fri, Nov 27
Frontier Logo
9:52 pm - 3:22 pmTTN  Trenton-Mercer-SEA Seattle/Tacoma Intl
20h 30m2 stops Tampa Denver Intl
Frontier Logo
1:52 pm - 10:34 amSEA  Seattle/Tacoma Intl-TTN Trenton-Mercer
17h 42m2 stops Los Angeles Orlando
$777Frontier
Mon, Nov 16 - Fri, Nov 20
Multiple Airlines Logo
8:01 pm - 3:12 pmTTN  Trenton-Mercer-SEA Seattle/Tacoma Intl
46h 11m3 stops Orlando Atlanta Hartsfield-Jackson Denver Intl
Multiple Airlines Logo
6:30 pm - 8:57 pmSEA  Seattle/Tacoma Intl-TTN Trenton-Mercer
23h 27m2 stops Minneapolis St Paul Tampa
$841Multiple Airlines
Sat, Nov 21 - Sat, Dec 5
Multiple Airlines Logo
9:52 pm - 10:27 amTTN  Trenton-Mercer-SEA Seattle/Tacoma Intl
15h 35m1 stop Tampa
Multiple Airlines Logo
9:29 pm - 11:15 amSEA  Seattle/Tacoma Intl-TTN Trenton-Mercer
10h 46m1 stop Fort Lauderdale
$856Multiple Airlines
Mon, Nov 23 - Fri, Nov 27
Multiple Airlines Logo
9:52 pm - 10:27 amTTN  Trenton-Mercer-SEA Seattle/Tacoma Intl
15h 35m1 stop Tampa
Multiple Airlines Logo
8:20 am - 8:57 pmSEA  Seattle/Tacoma Intl-TTN Trenton-Mercer
9h 37m1 stop Tampa
$863Multiple Airlines
Fri, Nov 20 - Tue, Nov 24
Multiple Airlines Logo
11:19 am - 5:17 pmTTN  Trenton-Mercer-SEA Seattle/Tacoma Intl
32h 58m3 stops Orlando Dallas/Fort Worth Minneapolis St Paul
Multiple Airlines Logo
1:52 pm - 10:34 amSEA  Seattle/Tacoma Intl-TTN Trenton-Mercer
17h 42m2 stops Los Angeles Orlando
$880Multiple Airlines
Sun, Dec 20 - Mon, Dec 28
Frontier Logo
9:16 pm - 12:22 pmTTN  Trenton-Mercer-SEA Seattle/Tacoma Intl
18h 06m2 stops Tampa Denver Intl
Frontier Logo
6:25 pm - 11:01 amSEA  Seattle/Tacoma Intl-TTN Trenton-Mercer
13h 36m2 stops Las Vegas Harry Reid Intl Orlando
$903Frontier
Booking Insights

Price, demand and travel trends for Trenton to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Which airline is the cheapest to fly from Trenton to Seattle?

Frontier ($561) offered the cheapest round-trip ticket from Trenton to Seattle in the last 5 days.

Key details for Trenton to Seattle flights

Cheapest flight

$240
One-way flight from Trenton to Seattle

When to book flights from Trenton to Seattle

Are your dates flexible? Find out the best times to travel from Trenton to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Trenton to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Do I need a passport to fly from Trenton to Seattle?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • Have flight prices from Trenton to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $561 to $1,868. That means the highest observed fare was about 3x higher than the lowest one.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging $61 for economy cars. Top options include:

    • Europcar
    • Fox
    • Thrifty
    • Budget
    • Dollar

  • Which airports can I use when flying from Trenton to Seattle?

    Flights from Trenton to Seattle usually depart from Trenton-Mercer (TTN) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Trenton to Seattle pass through?

    Most connecting flights from Trenton to Seattle pass through Philadelphia (PHL), which handles 100% of one-stop traffic on this route.

  • What is the time difference between Trenton and Seattle?

    Seattle is 3 hours behind Trenton (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Trenton to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Trenton to Seattle

Complete your trip to Seattle with a hotel stay or car rental