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Cheap flights from Washington, D.C. Dulles Intl Airport to Hamilton, ON from C$ 398

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YHM
28 May — 4 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Hamilton

Enter your travel dates to find the best prices.

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 28 April 2026.

Sun 7/65:30 p.m.
IAD
-
YHM
1 stop22h 25m
Multiple Airlines
Sun 14/68:30 p.m.
YHM
-
IAD
1 stop21h 40m
Multiple Airlines
Deal found 23/4C$ 702
Mon 10/87:00 p.m.
IAD
-
YHM
2 stops27h 09m
Multiple Airlines
Thu 13/87:00 a.m.
YHM
-
IAD
2 stops35h 10m
Multiple Airlines
Deal found 23/4C$ 885
Fri 21/87:00 p.m.
IAD
-
YHM
3 stops22h 25m
Multiple Airlines
Sun 23/83:50 p.m.
YHM
-
IAD
3 stops26h 20m
Multiple Airlines
Deal found 25/4C$ 947
Mon 25/57:00 p.m.
IAD
-
YHM
2 stops27h 09m
Multiple Airlines
Mon 1/67:00 a.m.
YHM
-
IAD
2 stops16h 39m
Multiple Airlines
Deal found 27/4C$ 1,074
Mon 25/57:00 p.m.
IAD
-
YHM
2 stops27h 09m
Multiple Airlines
Wed 27/57:00 a.m.
YHM
-
IAD
2 stops16h 39m
Multiple Airlines
Deal found 27/4C$ 1,076
Thu 4/66:00 a.m.
IAD
-
YHM
2 stops16h 09m
Multiple Airlines
Sun 14/65:45 p.m.
YHM
-
IAD
2 stops24h 25m
Multiple Airlines
Deal found 27/4C$ 1,116
Fri 29/57:00 p.m.
IAD
-
YHM
2 stops27h 34m
Multiple Airlines
Sun 31/55:45 p.m.
YHM
-
IAD
2 stops24h 25m
Multiple Airlines
Deal found 23/4C$ 1,134

Find flight deals from Dulles Intl to Hamilton

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Hamilton (YHM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 April 2026.

Round-trip from

C$ 702

One-way from

C$ 398

Popular in

November

Cheapest in

June

Average price

C$ 423
7/6-14/6
  • 7/6-14/6
  • 2 total stops
  • 44h 05m total
  • Washington, D.C. to Hamilton
Search Deals
WestJet
  • WestJet
  • 10/8
  • 1 total stop
  • 22h 15m total
  • Washington, D.C. to Hamilton
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Hamilton that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 28 April 2026.
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

Cheapest round-trip

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Mon 10/8

7:00 p.m.-10:34 p.m.

2 stops27h 34m

Hamilton

Thu 13/8

5:45 p.m.-6:10 p.m.

2 stops24h 25m

C$ 1,238

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Fri 22/5

7:00 p.m.-10:34 p.m.

2 stops27h 34m

Hamilton

Sun 24/5

5:45 p.m.-6:10 p.m.

2 stops24h 25m

C$ 1,255

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Fri 15/5

7:00 p.m.-10:34 p.m.

2 stops27h 34m

Hamilton

Sun 17/5

5:45 p.m.-6:10 p.m.

2 stops24h 25m

C$ 1,365
Quickest round-trip

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Wed 3/6

11:58 a.m.-10:09 p.m.

2 stops10h 11m

Hamilton

Wed 8/7

7:00 a.m.-11:21 p.m.

2 stops16h 21m

C$ 1,367

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Fri 22/5

6:00 a.m.-12:59 p.m.

3 stops30h 59m

Hamilton

Tue 26/5

8:50 a.m.-10:56 p.m.

2 stops14h 06m

C$ 1,399

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Mon 18/5

6:00 a.m.-10:14 p.m.

2 stops16h 14m

Hamilton

Wed 27/5

7:00 a.m.-11:39 p.m.

2 stops16h 39m

C$ 1,429

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Fri 31/7

7:00 p.m.-8:25 p.m.

3 stops25h 25m

Hamilton

Sun 2/8

5:45 p.m.-6:10 p.m.

2 stops24h 25m

C$ 1,468

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Mon 6/7

7:00 p.m.-8:25 p.m.

3 stops25h 25m

Hamilton

Thu 9/7

8:35 p.m.-6:10 p.m.

2 stops21h 35m

C$ 1,524

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Thu 21/5

11:15 a.m.-10:09 p.m.

3 stops34h 54m

Hamilton

Mon 25/5

7:00 a.m.-11:39 p.m.

2 stops16h 39m

C$ 1,637
Cheapest one-way

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Mon 10/8

7:00 p.m.-5:15 p.m.

1 stop22h 15m

C$ 398

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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.

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?

    Hamilton (YHM) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Hamilton. You should not have trouble finding flights to Hamilton from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Hamilton airport from Washington, D.C. Dulles Intl. It is only a 10.9 km journey from Hamilton (YHM) to Hamilton’s city centre.

  • 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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How does Cheapflights help users find flights from Dulles Intl to Hamilton?

Cheapflights helps you search for flights from Dulles Intl to Hamilton via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Hamilton?

Cheapflights simply makes it quick and affordable to book flights from Dulles Intl to Hamilton by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Dulles Intl to Hamilton with no change fees?

Yes! Cheapflights helps users easily find flights from Dulles Intl to Hamilton with no change fees.

Can Cheapflights notify me if prices for flights from Dulles Intl to Hamilton become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Hamilton from Dulles Intl today and book when prices fit your budget.

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