Cheap flights from Seattle (SEA) to Delaware

SEA — ILG
Dec 13 — Dec 201

How far in advance should I book a flight from Seattle to Delaware?

Users have found that booking a flight from Seattle to Delaware at least 61 days early can save you up to 45% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from Seattle to Delaware for as little as $626 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $710 for flights departing within the next 3 days.

What is the cheapest month to fly from Seattle to Delaware?

Our data shows that February tends to be the cheapest month to fly to Delaware from Seattle. Users have commonly found prices around $487 for the month, but tickets can be as low as $227. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Seattle to Delaware (SEA - DE)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Delaware as you normally would.

Cheap flights from Seattle to Delaware in December, January 2022

The best prices found for SEA to Delaware flights for December, January
Jan 19 - Jan 23
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

7h 07m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

24h 13m
$164

Frontier

Pick Dates

Deal found 12/7

Dec 14 - Dec 15
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 28m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

17h 36m
$165

Frontier

Pick Dates

Deal found 12/7

Dec 13 - Dec 15
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 12m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

17h 36m
$166

Frontier

Pick Dates

Deal found 12/7

Seattle to Delaware 2022 flight deals

Cheap flights to Delaware from Seattle found for this year
Dec 12 - Dec 17
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 35m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

17h 40m
$164

Frontier

Pick Dates

Deal found 12/6

Dec 14 - Dec 15
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 28m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

17h 36m
$165

Frontier

Pick Dates

Deal found 12/7

Dec 13 - Dec 15
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 12m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

17h 36m
$166

Frontier

Pick Dates

Deal found 12/7

Cheap Frontier flights from Seattle to Delaware

Dec 13 - Dec 17
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 12m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

17h 40m
$164

Frontier

Pick Dates

Deal found 12/6

Dec 14 - Dec 15
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 28m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

17h 36m
$165

Frontier

Pick Dates

Deal found 12/7

Jan 25 - Jan 29
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

19h 01m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

14h 47m
$166

Frontier

Pick Dates

Deal found 12/6

Cheap Spirit Airlines flights from Seattle to Delaware

Jan 11 - Jan 16
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

12h 00m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

2 stops

26h 28m
$209

Spirit Airlines

Pick Dates

Deal found 12/8

Feb 8 - Feb 14
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

14h 03m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

2 stops

16h 09m
$210

Spirit Airlines

Pick Dates

Deal found 12/8

Feb 9 - Feb 15
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

14h 03m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

2 stops

16h 09m
$212

Spirit Airlines

Pick Dates

Deal found 12/8

Non-stop flights to Delaware from Seattle

Save time with Seattle to Delaware direct flight deals
Feb 4 - Feb 14
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

Nonstop

5h 07m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

Nonstop

6h 10m
$237

Alaska Airlines

Pick Dates

Deal found 12/8

Mar 1 - Mar 7
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

Nonstop

4h 56m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

Nonstop

6h 08m
$238

American Airlines

Pick Dates

Deal found 12/8

Feb 7 - Feb 13
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

Nonstop

4h 54m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

Nonstop

6h 10m
$256

Multiple Airlines

Pick Dates

Deal found 12/8

Last minute flights from Seattle to Delaware

Late deals on return flights to Delaware from Seattle, departing today and this week
Dec 13 - Dec 17
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 12m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

17h 40m
$164

Frontier

Pick Dates

Deal found 12/6

Dec 14 - Dec 15
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 28m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

17h 36m
$165

Frontier

Pick Dates

Deal found 12/7

Dec 13 - Dec 15
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 12m
PHL

Philadelphia

SEA

Seattle/Tacoma Intl

1 stop

17h 36m
$166

Frontier

Pick Dates

Deal found 12/7

One-way flights to Delaware from Seattle

The cheapest one-way flights from Seattle to Delaware
Dec 13
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

8h 12m
$81

Frontier

Pick Dates

Deal found 12/6

Jan 7
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

19h 01m
$86

Frontier

Pick Dates

Deal found 12/6

Jan 9
SEA

Seattle/Tacoma Intl

PHL

Philadelphia

1 stop

19h 01m
$87

Frontier

Pick Dates

Deal found 12/6

Related info for your journey

Useful info, stats and facts about Seattle to Delaware flights.

What airport do you fly from for flights from Seattle to Delaware?

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Delaware. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

Which airlines flying from Seattle/Tacoma Intl to Delaware have flexible cancellations due to COVID-19?

Some of our airline partners flying from Seattle/Tacoma Intl to Delaware have new flexible policies in place due to COVID-19. American Airlines, Alaska Airlines, and Delta are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Can I find flights from Seattle to Delaware for under $200 on Cheapflights?

Yes, there are multiple flights from Seattle to Delaware for under $200. The cheapest flight booked recently is on Frontier for just $164, but on average you can expect to pay $179.

Are there nonstop flights from Seattle to Delaware for under $300 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to Delaware under $300. A good price for a nonstop flight from Seattle to Delaware is less than $284.

Are there last-minute flights available from Seattle to Delaware for under $200?

There are currently 20+ open flights from Seattle to Delaware within the next 7 days for less than $200.

What are the cheapest airlines to fly from Seattle to Delaware one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $81. Spirit Airlines flights start at $111 while deals on Delta start at $129 one-way.

What are the cheapest flights from Seattle to Delaware?

Looking at all options, your cheapest flight can be booked for $318. While the most popular route (Seattle/Tacoma Intl - Philadelphia) can be booked for $179 on average our data indicates $360 when flying from Seattle to Delaware.