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Trenton

$238+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TTN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Washington to Trenton

Keep the following information in mind while searching for Washington to Trenton flight deals. Data was last updated June 12, 2025.

Round-trip from

$468
(Frontier)

One-way from

$238
(Frontier)

Popular in

December

Cheapest in

January

Average price

$467
From Washington to Trenton-Mercer
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One-way flight from Washington to Trenton-Mercer
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Washington to Trenton

Cheapest flights from Washington to Trenton
Explore the most affordable flight options available from Washington to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/11. 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.
Thu 8/214:40 pmSEA - TTN
2 stops13h 34mFrontier
Mon 8/259:59 amTTN - SEA
2 stops17h 35mFrontier
Deal found 6/11$468

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 June 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

Thu 8/21

4:40 pm-9:14 am

2 stops13h 34m

Trenton-Mercer

Mon 8/25

9:59 am-12:34 am

2 stops17h 35m

$468

SeattleTrenton

SEA - TTN

SEATTN

Seattle/Tacoma Intl

Fri 9/5

7:00 pm-10:47 am

2 stops12h 47m

$238

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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, January is the cheapest month in which you can book a flight from State of Washington to Trenton, New Jersey (average of $73). Flying from State of Washington to Trenton, New Jersey in June is currently the most expensive (average of $153). 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Trenton, New Jersey as you normally would.

Rainfall in Trenton by month

Plan your trip to Trenton by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Trenton, New Jersey ranges from 2.9 - 4.8 inches per month. July is typically the wettest month, when rainfall can reach 4.8 in. February is typically the driest time to visit Trenton, New Jersey when rainfall is around 2.9 in.

Temperature in Trenton by month

Plan your trip to Trenton by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Trenton, New Jersey, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Trenton

Get insights into the airlines that provide service to Trenton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trenton. Reviews last updated June 12, 2025.
Frontier
5.9
Fair
3,295 reviews

Boarding

6.2

Entertainment

4.5

Food

4.8

Crew

6.8

Overall

5.9

Comfort

5.6

Reviews

1 / 20
4.0
Okay

Paulina,Jun 2025

MSY - DEN

The staff in the plane and outside of the plane were very rude. My flight was delayed 3 times which i understand was not the staff’s fault but my boarding pass time was never updated which had multiple people very confused and when I asked the question of why no answer was given. They made a handful of people check their bag and upon entering the plane there was still plenty of room.
Frontier
5.9
Fair
3,295 reviews
Frontier
5.9
Fair
3,295 reviews

Boarding

6.2

Entertainment

4.5

Food

4.8

Crew

6.8

Overall

5.9

Comfort

5.6

Reviews

1 / 20
4.0
Okay

Paulina,Jun 2025

MSY - DEN

The staff in the plane and outside of the plane were very rude. My flight was delayed 3 times which i understand was not the staff’s fault but my boarding pass time was never updated which had multiple people very confused and when I asked the question of why no answer was given. They made a handful of people check their bag and upon entering the plane there was still plenty of room.

Related info for your journey

Find useful and relevant information for your journey from Washington to Trenton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Trenton from Washington?

    If you book a flight to Trenton from Washington, you will be flying to Trenton-Mercer, which is the city’s only airport. Trenton-Mercer (TTN) is located 4.8 mi from the center of Trenton.

  • Can I find deals for flights from Washington to Trenton that include hotel bookings?

    Yes. In addition to deals on Washington to Trenton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Trenton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Trenton.

  • Can I find deals for business class flights from Washington to Trenton?

    Yes. Cheapflights offers flight deals from Washington to Trenton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Trenton, New Jersey?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Trenton, New Jersey (average of $73). Flying from State of Washington to Trenton, New Jersey in June is currently the most expensive (average of $153). 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.

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