$133 Cheap Flights from Hamilton (YHM) to Washington (IAD)

View $133 flight on Thu, Dec 11, 2025Opens in a new window

Popular airlines from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Hamilton to Washington (YHM-IAD)

Prices were available within the past 7 days and start at $133 for one-way flights and $215 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Jan 28 - Mon, Feb 2
YHM
Hamilton
IAD
Washington
$215 Roundtrip, found 2 days ago
$215
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, Jan 28 from Hamilton to Washington, returning Mon, Feb 2, priced at $215 found 2 days ago
Air Canada
Wed, Oct 22 - Wed, Nov 5
YHM
Hamilton
IAD
Washington
$224 Roundtrip, found 2 days ago
$224
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, Oct 22 from Hamilton to Washington, returning Wed, Nov 5, priced at $224 found 2 days ago
Air Canada
Fri, Oct 24 - Tue, Oct 28
YHM
Hamilton
IAD
Washington
$233 Roundtrip, found 21 hours ago
$233
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Fri, Oct 24 from Hamilton to Washington, returning Tue, Oct 28, priced at $233 found 21 hours ago
Air Canada
Fri, Jan 16 - Mon, Jan 19
YHM
Hamilton
IAD
Washington
$271 Roundtrip, found 11 hours ago
$271
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Fri, Jan 16 from Hamilton to Washington, returning Mon, Jan 19, priced at $271 found 11 hours ago
Air Canada
Wed, Nov 5 - Sat, Nov 8
YHM
Hamilton
IAD
Washington
$272 Roundtrip, found 21 hours ago
$272
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Wed, Nov 5 from Hamilton to Washington, returning Sat, Nov 8, priced at $272 found 21 hours ago
Air Canada
Wed, Nov 5 - Sat, Nov 8
YHM
Hamilton
IAD
Washington
$278 Roundtrip, found 21 hours ago
$278
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Wed, Nov 5 from Hamilton to Washington, returning Sat, Nov 8, priced at $278 found 21 hours ago
Air Canada
Wed, Oct 22 - Wed, Nov 5
YHM
Hamilton
IAD
Washington
$280 Roundtrip, found 2 days ago
$280
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, Oct 22 from Hamilton to Washington, returning Wed, Nov 5, priced at $280 found 2 days ago
Air Canada
Thu, Oct 23 - Tue, Oct 28
YHM
Hamilton
IAD
Washington
$281 Roundtrip, found 3 days ago
$281
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Oct 23 from Hamilton to Washington, returning Tue, Oct 28, priced at $281 found 3 days ago
Air Canada
Thu, Nov 13 - Sun, Nov 16
YHM
Hamilton
IAD
Washington
$282 Roundtrip, found 1 day ago
$282
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Nov 13 from Hamilton to Washington, returning Sun, Nov 16, priced at $282 found 1 day ago
Air Canada
Fri, Oct 24 - Tue, Oct 28
YHM
Hamilton
IAD
Washington
$289 Roundtrip, found 21 hours ago
$289
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Fri, Oct 24 from Hamilton to Washington, returning Tue, Oct 28, priced at $289 found 21 hours ago

Frequently asked questions

How much does a flight from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD) cost?
Lock in a cheap one-way flight from $133 or cheap return flight from $215 from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD)?
Traveling in January may help you find better deals, as it's the cheapest month for flights between YHM and IAD. You'll usually find the lowest prices during the off-season.
Which airlines fly direct from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD)?
You can't fly direct to Washington Dulles Intl. Airport (IAD) from Hamilton, ON (YHM-John C. Munro Hamilton Intl.). However, you can arrive in Washington without any layovers by departing from Pearson Intl. Airport (YYZ).
What is the cheapest airline that flies from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from YHM to IAD. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD)?
Nonstop flights from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from YHM to IAD?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD)?
Select a flight from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD) last-minute?
Holding off until right before your break to book your flight from YHM to IAD often results in higher prices. Although you may find some last-minute discounts, there's no guarantee. Be flexible with your itinerary to boost your chances of landing a bargain.
Is it cheaper to book a YHM to IAD flight and hotel package?
Compared with arranging hotels and flights separately, booking a YHM to IAD flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the hassle out of travel planning. Just secure your flights and choose from our extensive range of stays, then personalize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from John C. Munro Hamilton Intl. Airport (YHM) to Washington Dulles Intl. Airport (IAD)?
If you reserved your YHM to IAD flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
John C. Munro Hamilton Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada
Roundtrip price
$215
Distance
318 mi

Book with confidence

Hamilton to Washington Flights

The cheapest times to fly from Hamilton to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Hamilton to Washington are during the month of January. You can find some of the cheapest flights from Hamilton to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Hamilton to Washington

Sunday is one of the best days to book for cheap flights from Hamilton to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Hamilton to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Hamilton to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $133 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Hamilton to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Hamilton to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Hamilton to Washington Flights

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*Available to One Key members.