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Cheap flights from Seattle to Philadelphia from $642

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Philadelphia departing on 10/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Multiple Airlines Logo
3:46 pm - 12:05 pmSEA-ACY
17h 19m1 stop
Multiple Airlines Logo
5:45 am - 9:14 pmACY-SEA
18h 29m1 stop
$642Multiple Airlines
Find Deal
Mon, Oct 13 - Mon, Oct 20
Multiple Airlines Logo
3:46 pm - 11:42 pmSEA-ACY
28h 56m1 stop
Multiple Airlines Logo
5:45 am - 11:06 pmACY-SEA
20h 21m2 stops
$717Multiple Airlines
Find Deal
Mon, Oct 13 - Mon, Oct 20
Multiple Airlines Logo
6:34 pm - 11:42 pmSEA-ACY
26h 08m2 stops
Multiple Airlines Logo
5:45 am - 5:19 pmACY-SEA
14h 34m2 stops
$946Multiple Airlines
Find Deal
Mon, Oct 13 - Mon, Oct 20

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Atlantic City 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Seattle to Atlantic City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleAtlantic City

SEA - ACY

SEAACY

Seattle/Tacoma Intl

Mon 10/13

3:46 pm-12:05 pm

1 stop17h 19m

Atlantic City

Mon 10/20

5:45 am-9:14 pm

1 stop18h 29m

$642

SeattleAtlantic City

SEA - ACY

SEAACY

Seattle/Tacoma Intl

Mon 10/13

3:46 pm-11:42 pm

1 stop28h 56m

Atlantic City

Mon 10/20

5:45 am-11:06 pm

2 stops20h 21m

$717

SeattleAtlantic City

SEA - ACY

SEAACY

Seattle/Tacoma Intl

Mon 10/13

6:34 pm-11:42 pm

2 stops26h 08m

Atlantic City

Mon 10/20

5:45 am-5:19 pm

2 stops14h 34m

$946

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Seattle to Atlantic City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Atlantic City?

On average, the least expensive day to fly to Atlantic City from Seattle is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $338. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Atlantic City on Thursday is $352.

When to book flights from Seattle to Atlantic City

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Atlantic City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Atlantic City (SEA to ACY) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Atlantic City

Direct flights

None
There are no direct flights from Seattle to Atlantic City. There are no popular flight routes from Seattle to Atlantic City.
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  • How far is Seattle/Tacoma Intl to Atlantic City by plane?

    Atlantic City is 2426.2 mi away from Seattle/Tacoma Intl. 17h 19m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Atlantic City Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Atlantic City Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Atlantic City Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Atlantic City Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Atlantic City Airport.

  • What documentation or ID do you need to fly to Atlantic City Airport?

    The travel and health documents required for your trip to Atlantic City Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Atlantic City Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Seattle to Atlantic City?

Best airlines flying from Seattle to Atlantic City

Compare and see reviews for airlines that fly from Seattle to Atlantic City with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $341Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Atlantic City?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Atlantic City from Seattle.

Can I find flights from Seattle to Atlantic City with flexible booking policies on momondo?

All flight searches from Seattle to Atlantic City on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Atlantic City?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Atlantic City.

I’m not ready to book a flight from Seattle to Atlantic City right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Atlantic City, momondo offers a useful price alert feature which will track prices for flights to Atlantic City from Seattle and alert you when they change.

An easier way to manage your Atlantic City trip

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1 adult
Thu 10/16
Thu 10/23
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