Flights from Seattle to Middletown

Cheapest flights from Seattle

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 30 - Tue, Oct 7

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$277 Roundtrip, found 12 hours ago

$277

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Tue, Sep 30 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Tue, Oct 7, priced at $277 found 12 hours ago

Mon, Oct 6 - Sat, Oct 11

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$296 Roundtrip, found 12 hours ago

$296

Roundtrip

found 12 hours ago

Select Delta flight, departing Mon, Oct 6 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Sat, Oct 11, priced at $296 found 12 hours ago

Tue, Sep 30 - Thu, Oct 9

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$297 Roundtrip, found 12 hours ago

$297

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Tue, Sep 30 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Thu, Oct 9, priced at $297 found 12 hours ago

Fri, Oct 3 - Mon, Oct 6

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$316 Roundtrip, found 12 hours ago

$316

Roundtrip

found 12 hours ago

Select Delta flight, departing Fri, Oct 3 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Mon, Oct 6, priced at $316 found 12 hours ago

Tue, Sep 30 - Wed, Oct 1

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$317 Roundtrip, found 12 hours ago

$317

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Tue, Sep 30 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Wed, Oct 1, priced at $317 found 12 hours ago

Mon, Oct 6 - Wed, Oct 8

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$326 Roundtrip, found 12 hours ago

$326

Roundtrip

found 12 hours ago

Select Delta flight, departing Mon, Oct 6 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Wed, Oct 8, priced at $326 found 12 hours ago

Tue, Sep 30 - Mon, Oct 13

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$327 Roundtrip, found 12 hours ago

$327

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Tue, Sep 30 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Mon, Oct 13, priced at $327 found 12 hours ago

Wed, Oct 1 - Thu, Oct 2

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$337 Roundtrip, found 12 hours ago

$337

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Wed, Oct 1 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Thu, Oct 2, priced at $337 found 12 hours ago

Thu, Oct 2 - Mon, Oct 13

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$347 Roundtrip, found 12 hours ago

$347

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Thu, Oct 2 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Mon, Oct 13, priced at $347 found 12 hours ago

Mon, Oct 6 - Thu, Oct 9

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$357 Roundtrip, found 12 hours ago

$357

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Mon, Oct 6 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Thu, Oct 9, priced at $357 found 12 hours ago

Sun, Oct 5 - Mon, Oct 6

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$387 Roundtrip, found 12 hours ago

$387

Roundtrip

found 12 hours ago

Select Alaska Airlines flight, departing Sun, Oct 5 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Mon, Oct 6, priced at $387 found 12 hours ago

Mon, Nov 24 - Sun, Nov 30

SEA

Seattle - Tacoma Intl.

IAD

Washington Dulles Intl.

$537 Roundtrip, found 2 days ago

$537

Roundtrip

found 2 days ago

Select Delta flight, departing Mon, Nov 24 from Seattle - Tacoma Intl. to Washington Dulles Intl., returning Sun, Nov 30, priced at $537 found 2 days ago