What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Hamilton, Ontario round-trip?

Flying on WestJet is currently your cheapest option to Hamilton, Ontario, with prices starting at $352.

In terms of precipitation, rainfall in Hamilton, Ontario ranges from 2.3 - 4.0 inches per month. July is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Hamilton, Ontario when rainfall is around 2.3 in.

If weather is an important factor for your trip to Hamilton, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Hamilton, Ontario?

To save on the cost of your flight from Washington, D.C. Dulles Intl Airport to Hamilton, Ontario, book at least 37 days before your planned departure. Booking around this time can save you about 128% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $292 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $617.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Hamilton, Ontario?

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, June can be a great choice for travel to Hamilton, Ontario. Flights to Hamilton, Ontario from Washington, D.C. Dulles Intl Airport in June are about $283 on average during June, but can be found for as low as $132.

What is the cheapest time of day to fly from IAD to YHM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Hamilton, Ontario as you normally would.

What airport do you fly into for flights to Hamilton from Washington, D.C. Dulles Intl?

Located just 6.8 mi from the city center, Hamilton is the airport most travelers will use when flying to Hamilton from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Hamilton (YHM) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.

Can I find deals for flights from Dulles Intl to Hamilton that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Hamilton flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Hamilton?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Hamilton.

Can I find deals for business class flights from Dulles Intl to Hamilton?

Yes. Cheapflights offers flight deals from Dulles Intl to Hamilton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$204+ Flights from Washington, D.C. Dulles Intl Airport to Hamilton, ON

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Cheap flight deals from Dulles Intl to Hamilton

Round-trip from	$352 (oojo)
One-way from	$204 (oojo)
Popular in	November
Cheapest in	June
Average price	$286

From Washington, D.C. Dulles Intl to Hamilton

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One-way flight from Washington, D.C. Dulles Intl to Hamilton

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Highest demand for flights based on searches. 4% potential increase in price ($13 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Dulles Intl to Hamilton

Cheapest flights from Dulles Intl to Hamilton
Explore the most affordable flight options available from Dulles Intl to Hamilton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Fri 9/56:45 pmIAD - YHM

1 stop29h 55mWestJet

Mon 9/86:00 amYHM - IAD

1 stop11h 50mWestJet

Deal found 7/28

$352

Fri 9/196:45 pmIAD - YHM

2 stops29h 03mMultiple Airlines

Sun 9/212:55 pmYHM - IAD

2 stops26h 55mMultiple Airlines

Deal found 7/28

$716

Best flights from Dulles Intl to Hamilton
Discover carefully curated flight deals from Dulles Intl to Hamilton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Fri 9/56:45 pmIAD - YHM

1 stop29h 55mWestJet

Mon 9/86:00 amYHM - IAD

1 stop11h 50mWestJet

Deal found 7/28

$352

Fri 9/196:45 pmIAD - YHM

2 stops29h 03mMultiple Airlines

Sun 9/212:55 pmYHM - IAD

2 stops26h 55mMultiple Airlines

Deal found 7/28

$716

Last-minute flights from Dulles Intl to Hamilton
Discover last-minute flight deals from Dulles Intl to Hamilton. Data last updated July 29, 2025 and is based on user searches.

Thu 8/76:00 amIAD - YHM

2 stops13h 54mMultiple Airlines

Sun 8/105:45 pmYHM - IAD

2 stops24h 09mMultiple Airlines

Deal found 7/27

$1,335

Fri 8/86:45 pmIAD - YHM

1 stop29h 56mWestJet

Wed 8/136:00 amYHM - IAD

1 stop11h 54mWestJet

Deal found 7/27

$1,284

Tue 8/126:00 amIAD - YHM

3 stops18h 41mWestJet

Fri 8/156:00 amYHM - IAD

3 stops16h 55mWestJet

Deal found 7/28

$1,257

Fri 8/226:45 pmIAD - YHM

2 stops21h 59mMultiple Airlines

Sun 8/317:05 amYHM - IAD

2 stops27h 20mMultiple Airlines

Deal found 7/27

$854

One-way flights from Dulles Intl to Hamilton
Search for one-way flight options from Dulles Intl to Hamilton. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Wed 8/276:45 pmIAD - YHM

1 stop29h 56mWestJet

Deal found 7/27

$204

Mon 8/256:45 pmIAD - YHM

2 stops21h 54mMultiple Airlines

Deal found 7/28

$282

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Hamilton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Fri 9/5

6:45 pm-12:40 am

1 stop29h 55m

Hamilton

Mon 9/8

6:00 am-5:50 pm

1 stop11h 50m

$352

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Fri 9/19

6:45 pm-11:48 pm

2 stops29h 03m

Hamilton

Sun 9/21

2:55 pm-5:50 pm

2 stops26h 55m

$716

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Wed 8/27

6:45 pm-12:41 am

1 stop29h 56m

$204

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Mon 8/25

6:45 pm-4:39 pm

2 stops21h 54m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Dulles Intl to Hamilton

Have a flexible travel schedule? Discover the best time to fly to Hamilton from Dulles Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Hamilton

Get a feel of what it's like to fly with WestJet from Washington, D.C. Dulles Intl Airport to Hamilton by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

WestJet

7.2

Good

2,972 reviews

Reviews

1 / 20

10.0

Excellent

Sugith,Jan 2025

CUN - YYZ

On time departure. Good service on board. Comfort Plus seating was comfortable.

WestJet

7.2

Good

2,972 reviews

WestJet

7.2

Good

2,972 reviews

Reviews

1 / 20

10.0

Excellent

Sugith,Jan 2025

CUN - YYZ

On time departure. Good service on board. Comfort Plus seating was comfortable.

Related info for your journey

What airport do you fly into for flights to Hamilton from Washington, D.C. Dulles Intl?
Located just 6.8 mi from the city center, Hamilton is the airport most travelers will use when flying to Hamilton from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Hamilton (YHM) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.
What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Hamilton, Ontario round-trip?
Flying on WestJet is currently your cheapest option to Hamilton, Ontario, with prices starting at $352.
Can I find deals for flights from Dulles Intl to Hamilton that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Hamilton flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Hamilton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Hamilton.
Can I find deals for business class flights from Dulles Intl to Hamilton?
Yes. Cheapflights offers flight deals from Dulles Intl to Hamilton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Dulles Intl to Hamilton

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Complete your trip

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$204+ Cheap flights from Dulles Intl (IAD) to Hamilton, ON (YHM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Hamilton with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Hamilton

Round-trip from

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Popular in

Cheapest in

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Find flight deals from Dulles Intl to Hamilton

Cheapest flights from Dulles Intl to HamiltonExplore the most affordable flight options available from Dulles Intl to Hamilton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Dulles Intl to Hamilton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Hamilton that are best for you.

Best time to book a flight from Dulles Intl to Hamilton

Have a flexible travel schedule? Discover the best time to fly to Hamilton from Dulles Intl with our price prediction graph.

Reviews of airlines servicing Hamilton

Get a feel of what it's like to fly with WestJet from Washington, D.C. Dulles Intl Airport to Hamilton by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Hamilton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Hamilton from Washington, D.C. Dulles Intl?

What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Hamilton, Ontario round-trip?

Can I find deals for flights from Dulles Intl to Hamilton that include hotel bookings?

How can I find direct flights from Dulles Intl to Hamilton?

Can I find deals for business class flights from Dulles Intl to Hamilton?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Hamilton

See prices for flight routes from nearby airports that may be better suited for you.

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Cheapest flights from Dulles Intl to Hamilton
Explore the most affordable flight options available from Dulles Intl to Hamilton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.