$280+ Cheap flights from Trenton, NJ (TTN) to Washington
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SEA
Oct 16 — Oct 231
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Trenton to Washington
Keep the following information in mind while searching for Trenton to Washington flight deals. Data was last updated September 16, 2025.
Round-trip from | $280 (CheapOair) |
|---|---|
Popular in | December |
Cheapest in | September |
Average price | $327 |
Find flight deals from Trenton to Washington
Cheapest flights from Trenton to WashingtonExplore the most affordable flight options available from Trenton to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.
Explore the most affordable flight options available from Trenton to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:30 amTTN - SEA
2 stops17h 00mFrontier
Sun 10/56:12 amSEA - TTN
2 stops26h 22mFrontier
Deal found 9/15![Frontier logo]()
$280
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:30 pmTTN - SEA
2 stops15h 00mFrontier
Sat 9/277:00 amSEA - TTN
2 stops23h 32mFrontier
Deal found 9/14![Frontier logo]()
$373
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:30 pmTTN - SEA
2 stops15h 00mFrontier
Sun 9/286:12 amSEA - TTN
2 stops26h 22mFrontier
Deal found 9/15![Frontier logo]()
$490
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:30 pmTTN - SEA
2 stops15h 00mFrontier
Sun 9/216:12 amSEA - TTN
2 stops26h 22mFrontier
Deal found 9/15![Frontier logo]()
$887
Cheapflights Fare Finder
Customize your flight search to find flights from Trenton to Washington 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, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Trenton to Washington that are best for you.
Fly from
Trenton
Fly to
Washington
Route
Depart
Return
Price
TrentonSeattle
TTN - SEA
TTNSEA
Trenton-Mercer
Thu 10/2
10:30 am-12:30 am
2 stops17h 00m
Seattle/Tacoma Intl
Sun 10/5
6:12 am-11:34 am
2 stops26h 22m
$280
TrentonSeattle
TTN - SEA
TTNSEA
Trenton-Mercer
Fri 9/26
12:30 pm-12:30 am
2 stops15h 00m
Seattle/Tacoma Intl
Sat 9/27
7:00 am-9:32 am
2 stops23h 32m
$373
TrentonSeattle
TTN - SEA
TTNSEA
Trenton-Mercer
Fri 9/26
12:30 pm-12:30 am
2 stops15h 00m
Seattle/Tacoma Intl
Sun 9/28
6:12 am-11:34 am
2 stops26h 22m
$490
Best time to book a flight from Trenton to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Trenton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Trenton to Washington
What is the cheapest month to book a flight from Trenton, New Jersey to State of Washington?
Currently, January is the cheapest month in which you can book a flight from Trenton, New Jersey to State of Washington (average of $238). Flying from Trenton, New Jersey to State of Washington in June is currently the most expensive (average of $387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.