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).

What is the cheapest time of day to fly from DCA 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. Reagan-National Airport to Hamilton, Ontario as you normally would.

Most accurate provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Hamilton, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Hamilton, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Hamilton, Ontario flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Hamilton, Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Hamilton, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Hamilton from Washington, D.C. Reagan-National?

Hamilton (YHM) is the airport you will fly into if you book a flight from Washington, D.C. Reagan-National to Hamilton. You should not have trouble finding flights to Hamilton from Washington, D.C. Reagan-National; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National 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. Reagan-National. It is only a 6.8 mi journey from Hamilton (YHM) to Hamilton’s city center.

Can I find deals for flights from Reagan-National to Hamilton that include hotel bookings?

Yes. In addition to deals on Reagan-National to Hamilton flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Reagan-National to Hamilton?

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

Can I find deals for business class flights from Reagan-National to Hamilton?

Yes. Cheapflights offers flight deals from Reagan-National 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.

$436+ Cheap Flights from Washington, D.C. Reagan-National Airport to Hamilton, ON

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One-way flights from Reagan-National to Hamilton
Search for one-way flight options from Reagan-National to Hamilton. Find affordable one-way fares based on user searches. Data last updated octubre 16, 2025.

mar. 11/188:50 amDCA - YHM

3 stops32h 27mWestJet

Deal found 10/16

$436

Cheap flight deals from Reagan-National to Hamilton

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	November
Cheapest in	June
Average price	$310

Provider with most accurate pricing for Washington, D.C. Reagan-National-Hamilton flight deals.

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Highest demand for flights based on searches. 8% potential increase in price ($26 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).

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Average for round-trip flights in October 2025

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Washington, D.C.Hamilton

DCA - YHM

DCAYHM

Washington, D.C. Reagan-National

mar. 11/18

8:50 am-5:17 pm

3 stops32h 27m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Hamilton, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Hamilton, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Hamilton, Ontario flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Hamilton, Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Hamilton, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Hamilton

Have a flexible travel schedule? Discover the best time to fly to Hamilton from Reagan-National 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Hamilton

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Hamilton, Ontario?

Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Hamilton, Ontario (average of $105). Flying from Washington, D.C. Reagan-National Airport to Hamilton, Ontario in October is currently the most expensive (average of $220). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

What airport do you fly into for flights to Hamilton from Washington, D.C. Reagan-National?
Hamilton (YHM) is the airport you will fly into if you book a flight from Washington, D.C. Reagan-National to Hamilton. You should not have trouble finding flights to Hamilton from Washington, D.C. Reagan-National; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National 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. Reagan-National. It is only a 6.8 mi journey from Hamilton (YHM) to Hamilton’s city center.
Can I find deals for flights from Reagan-National to Hamilton that include hotel bookings?
Yes. In addition to deals on Reagan-National to Hamilton flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Hamilton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Hamilton.
Can I find deals for business class flights from Reagan-National to Hamilton?
Yes. Cheapflights offers flight deals from Reagan-National 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.
What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Hamilton, Ontario?
Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Hamilton, Ontario (average of $105). Flying from Washington, D.C. Reagan-National Airport to Hamilton, Ontario in October is currently the most expensive (average of $220). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$436+ Cheap flights from Reagan-National (DCA) 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Hamilton with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Reagan-National to Hamilton

One-way flights from Reagan-National to HamiltonSearch for one-way flight options from Reagan-National to Hamilton. Find affordable one-way fares based on user searches. Data last updated octubre 16, 2025.

Search for one-way flight options from Reagan-National to Hamilton. Find affordable one-way fares based on user searches. Data last updated octubre 16, 2025.

Cheap flight deals from Reagan-National to Hamilton

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Cheapflights Fare Finder

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

Best time to book a flight from Reagan-National to Hamilton

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

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Hamilton

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Hamilton, Ontario?

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National?

Can I find deals for flights from Reagan-National to Hamilton that include hotel bookings?

How can I find direct flights from Reagan-National to Hamilton?

Can I find deals for business class flights from Reagan-National to Hamilton?

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Hamilton, Ontario?

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One-way flights from Reagan-National to Hamilton
Search for one-way flight options from Reagan-National to Hamilton. Find affordable one-way fares based on user searches. Data last updated octubre 16, 2025.