$158 Cheap United flights Monterey (MRY) to Washington (IAD)

View $158 flight on Tue, Sep 16, 2025Opens in a new window

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$158 Cheap United flights Monterey (MRY) to Washington (IAD)

Prices were available within the past 7 days and start at $158 for one-way flights and $335 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Sep 8 - Tue, Sep 9
MRY
Monterey
IAD
Washington
$335 Roundtrip, found 14 hours ago
$335
Roundtrip
found 14 hours ago
Select United flight, departing Mon, Sep 8 from Monterey to Washington, returning Tue, Sep 9, priced at $335 found 14 hours ago
United
Wed, Sep 10 - Wed, Sep 17
MRY
Monterey
IAD
Washington
$337 Roundtrip, found 14 hours ago
$337
Roundtrip
found 14 hours ago
Select United flight, departing Wed, Sep 10 from Monterey to Washington, returning Wed, Sep 17, priced at $337 found 14 hours ago
United
Mon, Sep 8 - Tue, Sep 9
MRY
Monterey
IAD
Washington
$343 Roundtrip, found 14 hours ago
$343
Roundtrip
found 14 hours ago
Select United flight, departing Mon, Sep 8 from Monterey to Washington, returning Tue, Sep 9, priced at $343 found 14 hours ago
United
Wed, Sep 17 - Thu, Sep 25
MRY
Monterey
IAD
Washington
$351 Roundtrip, found 6 days ago
$351
Roundtrip
found 6 days ago
Select United flight, departing Wed, Sep 17 from Monterey to Washington, returning Thu, Sep 25, priced at $351 found 6 days ago
United
Thu, Oct 16 - Sat, Oct 18
MRY
Monterey
IAD
Washington
$358 Roundtrip, found 4 hours ago
$358
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Oct 16 from Monterey to Washington, returning Sat, Oct 18, priced at $358 found 4 hours ago
United
Wed, Sep 10 - Wed, Sep 17
MRY
Monterey
IAD
Washington
$368 Roundtrip, found 14 hours ago
$368
Roundtrip
found 14 hours ago
Select United flight, departing Wed, Sep 10 from Monterey to Washington, returning Wed, Sep 17, priced at $368 found 14 hours ago
Flights from Monterey (MRY) to Washington (IAD)
Origin airport
Monterey Peninsula
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines, United
Popular airline
Alaska Airlines
Distance
2406 mi

Frequently asked questions

How much is a United Airlines flight from Monterey Peninsula Airport (MRY) to Washington Dulles Intl. Airport (IAD)?
Finding cheap one-way United Airlines flights from MRY to IAD from $158 on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Alternatively, check out our affordable return fares from $335 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from MRY to IAD with United Airlines?
January is one of the least expensive months to get away to Washington with United Airlines. You could also find excellent prices on one-way and return fares in February.
What is the cheapest time to book flights from Monterey Peninsula Airport (MRY) to Washington Dulles Intl. Airport (IAD) with United Airlines?
Begin your search one to three months ahead of your travel date to get cheaper fares on United Airlines flights from Monterey Peninsula Airport (MRY) to Washington Dulles Intl. Airport (IAD). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Monterey Peninsula Airport (MRY) to Washington Dulles Intl. Airport (IAD)?
Enter your dates, press search and select "Nonstop" on Expedia to browse any direct flights from MRY to IAD with United Airlines or other carriers.
What is the earliest United Airlines flight from MRY to IAD?
Filter your results by "Early Morning" and "Morning" to see the earliest flights from MRY to IAD. Leaving early means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Washington?
Hop on a United Airlines flight from Monterey Peninsula Airport (MRY) to Washington, and you're most likely to come in to Washington Dulles Intl. Airport (IAD). This is the airline's main hub in this city.
Why fly with United Airlines from MRY to IAD?
A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to leave from MRY to IAD with United Airlines. Plus, when you sign up to Expedia's free One Key™ program, you can earn OneKeyCash™* alongside any airline loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Monterey Peninsula Airport (MRY) to Washington Dulles Intl. Airport (IAD)?
Depending on the type of ticket you purchased, a fee will generally apply if you modify or cancel your flight more than 24 hours after it's been confirmed. To secure plane tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when searching for flights. For more details on canceling or changing your reservation, visit "Trips," select your flight and click on "Manage Booking."
*Available to One Key members.