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$368+ Cheap flights from Trenton, NJ (TTN) to Washington

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SEA
Jun 19 — Jun 261
Thu 6/19
Thu 6/26
1 adult, Economy
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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 June 14, 2025.

Round-trip from

$468
(Frontier)

One-way from

$368
(Lucky2Go)

Popular in

December

Cheapest in

September

Average price

$482
From Trenton-Mercer to Washington
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One-way flight from Trenton-Mercer to Washington
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Highest demand for flights based on searches. 4% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 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 Trenton to Washington

Cheapest flights from Trenton to Washington
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 June 14, 2025.

This Frontier deal was found by Cheapflights users on 6/12. 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.
Fri 8/1512:48 pmTTN - SEA
2 stops14h 46mFrontier
Sun 8/244:40 pmSEA - TTN
2 stops13h 34mFrontier
Deal found 6/12$468
This Frontier deal was found by Cheapflights users on 6/13. 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.
Tue 7/18:30 amTTN - PDX
2 stops17h 58mFrontier
Sat 7/127:01 pmPDX - TTN
2 stops13h 05mFrontier
Deal found 6/13$524

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 June 14, 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

Fri 8/15

12:48 pm-12:34 am

2 stops14h 46m

Seattle/Tacoma Intl

Sun 8/24

4:40 pm-9:14 am

2 stops13h 34m

$468

TrentonPortland

TTN - PDX

TTNPDX

Trenton-Mercer

Tue 7/1

8:30 am-11:28 pm

2 stops17h 58m

Portland

Sat 7/12

7:01 pm-11:06 am

2 stops13h 05m

$524

TrentonPortland

TTN - PDX

TTNPDX

Trenton-Mercer

Fri 7/11

12:48 pm-8:35 pm

1 stop10h 47m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/13

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 July is currently the most expensive (average of $391). 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.

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated June 14, 2025.
Frontier
5.9
Fair
3,296 reviews

Overall

5.9

Entertainment

4.5

Crew

6.8

Food

4.8

Comfort

5.6

Boarding

6.2

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
3,296 reviews
Frontier
5.9
Fair
3,296 reviews

Overall

5.9

Entertainment

4.5

Crew

6.8

Food

4.8

Comfort

5.6

Boarding

6.2

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 Trenton to Washington. 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 from for flights from Trenton to Washington?

    Most people fly from Trenton-Mercer (TTN) if they book a flight from Trenton to Washington. Trenton-Mercer is conveniently located just 4.8 mi from Trenton’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Trenton to Washington 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 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 July is currently the most expensive (average of $391). 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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