$580+ Cheap flights from Washington to Trenton, NJ (TTN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TTN
Jan 11 — Jan 181
1 adult, Economy
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One-way flights from Washington to TrentonSearch for one-way flight options from Washington to Trenton. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.
Search for one-way flight options from Washington to Trenton. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.
This Frontier deal was found by Cheapflights users on 12/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2810:00 pmSEA - TTN
2 stops18h 48mFrontier
Deal found 12/11![Frontier logo]()
$580
Find flight deals from Washington to Trenton
Keep the following information in mind while searching for Washington to Trenton flight deals. Data was last updated December 12, 2025.
Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Popular in | December |
Cheapest in | September |
Average price | $492 |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington to Trenton 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 December 12, 2025.
Use the filters below to find and compare flights from Washington to Trenton that are best for you.
Fly from
Washington
Fly to
Trenton
Route
Depart
Return
Price
SeattleTrenton
SEA - TTN
SEATTN
Seattle/Tacoma Intl
Wed 1/28
10:00 pm-7:48 pm
2 stops18h 48m
$580
SeattleTrenton
SEA - TTN
SEATTN
Seattle/Tacoma Intl
Wed 2/4
10:00 pm-7:48 pm
2 stops18h 48m
$580
Best time to book a flight from Washington to Trenton
Have a flexible travel schedule? Discover the best time to fly to Trenton from Washington 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 Washington to Trenton
What is the cheapest month to book a flight from State of Washington to Trenton, New Jersey?
Currently, December is the cheapest month in which you can book a flight from State of Washington to Trenton, New Jersey (average of $129). Flying from State of Washington to Trenton, New Jersey in January is currently the most expensive (average of $217). 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.
What is the cheapest time of day to fly from WA to TTN?
Find hourly flight availability from Washington to Trenton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.
Unlike in the morning, when flights are generally more expensive, you can save up to 61% on flights from State of Washington to Trenton, New Jersey by exploring options for tickets in the afternoon.