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$107+ Cheap flights from Washington, D.C. (WAS) to Hamilton, ON, Canada

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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — YYZ
May 10 — May 171
Sun 5/10
Sun 5/17
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Hamilton are usually found in June or January, booked 77 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Washington, D.C. to Hamilton

Cheapest flights from Washington, D.C. to Hamilton
Explore the most affordable flight options available from Washington, D.C. to Hamilton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2026.

This Booking.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:05 pm
IAD
-
YYZ
Nonstop1h 25m
Air Canada
Tue 5/121:55 pm
YYZ
-
IAD
Nonstop1h 34m
Air Canada
Deal found 4/6$226
This Booking.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:40 pm
DCA
-
YYZ
Nonstop1h 32m
Air Canada
Sun 4/268:15 am
YYZ
-
DCA
1 stop3h 46m
Air Canada
Deal found 4/6$230
This Mytrip deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:59 am
DCA
-
YYZ
Nonstop1h 32m
Air Canada
Wed 5/208:55 pm
YYZ
-
DCA
Nonstop1h 33m
Air Canada
Deal found 4/5$232
This Trip.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:55 pm
DCA
-
YYZ
Nonstop1h 32m
Air Canada
Tue 5/128:55 pm
YYZ
-
DCA
Nonstop1h 33m
Air Canada
Deal found 4/6$234
This Booking.com deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:59 am
DCA
-
YYZ
Nonstop1h 32m
Air Canada
Mon 5/116:25 pm
YYZ
-
DCA
Nonstop1h 33m
Air Canada
Deal found 4/7$238
This Mytrip deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/173:45 pm
IAD
-
YYZ
1 stop7h 13m
Air Canada
Wed 5/201:55 pm
YYZ
-
IAD
Nonstop1h 34m
Air Canada
Deal found 4/5$238
This Trip.com deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:00 am
DCA
-
YYZ
1 stop4h 38m
Air Canada
Sun 5/108:10 am
YYZ
-
DCA
1 stop3h 51m
Air Canada
Deal found 4/7$247
This Mytrip deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:40 pm
DCA
-
YYZ
Nonstop1h 32m
Air Canada
Wed 4/296:20 pm
YYZ
-
DCA
Nonstop1h 33m
Air Canada
Deal found 4/6$248
This Mytrip deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:00 am
IAD
-
YYZ
Nonstop1h 27m
Air Canada
Wed 4/296:55 pm
YYZ
-
IAD
Nonstop1h 34m
Air Canada
Deal found 4/6$261
This Air Canada deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:55 am
IAD
-
YYZ
Nonstop1h 27m
Air Canada
Sat 5/91:55 pm
YYZ
-
IAD
Nonstop1h 34m
Air Canada
Deal found 4/5$267
This Flightnetwork deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/259:55 am
IAD
-
YYZ
Nonstop1h 27m
Air Canada
Mon 6/16:55 pm
YYZ
-
IAD
Nonstop1h 34m
Air Canada
Deal found 4/10$269
This Trip.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:55 am
IAD
-
YYZ
Nonstop1h 27m
Air Canada
Sat 5/1610:30 am
YYZ
-
IAD
1 stop4h 33m
Air Canada
Deal found 4/8$270

Find flight deals from Washington, D.C. to Hamilton

Keep the following information in mind while searching for Washington, D.C. to Hamilton flight deals. Data was last updated April 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$226
(Booking.com)

One-way from

$107
(Air Canada)

Popular in

March

Cheapest in

June

Average price

$345
Provider with most accurate pricing for Washington, D.C. (WAS)-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Toronto (YTO) flights.
Search Deals
From Washington, D.C. (WAS) to Hamilton
Search Deals
One-way flight from Washington, D.C. (WAS) to Hamilton
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 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 Washington, D.C. 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 2,558,603 searches. Data last updated April 10, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Hamilton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 5/15

7:40 pm-11:41 pm

1 stop4h 01m

Toronto Pearson Intl

Tue 5/19

5:05 pm-10:54 pm

1 stop5h 49m

$292

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 6/10

9:39 am-5:24 pm

1 stop7h 45m

Toronto Pearson Intl

Sat 6/13

6:00 am-1:01 pm

1 stop7h 01m

$292

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 6/10

9:39 am-5:24 pm

1 stop7h 45m

Toronto Pearson Intl

Thu 6/11

6:14 pm-10:59 pm

1 stop4h 45m

$292

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 5/6

6:00 am-11:18 am

1 stop5h 18m

Toronto Pearson Intl

Sat 5/9

4:10 pm-10:59 pm

1 stop6h 49m

$292

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 6/9

6:33 am-11:43 am

1 stop5h 10m

Toronto Pearson Intl

Tue 6/9

2:30 pm-4:13 pm

Nonstop1h 43m

$295

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sat 5/16

1:55 pm-5:59 pm

1 stop4h 04m

Toronto Pearson Intl

Sun 5/17

6:00 am-10:17 am

1 stop4h 17m

$296
Quickest round-trip

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 5/7

8:19 am-10:04 am

Nonstop1h 45m

Toronto Pearson Intl

Sun 5/10

9:35 am-11:14 am

Nonstop1h 39m

$310

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 5/13

12:27 pm-5:21 pm

1 stop4h 54m

Toronto Pearson Intl

Mon 5/18

6:37 pm-11:24 pm

1 stop4h 47m

$313

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 4/24

5:45 pm-11:43 pm

1 stop5h 58m

Toronto Pearson Intl

Mon 4/27

6:00 am-10:20 am

1 stop4h 20m

$313

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 5/5

9:40 am-1:24 pm

1 stop3h 44m

Toronto Pearson Intl

Tue 5/19

6:49 pm-10:54 pm

1 stop4h 05m

$313

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Washington, D.C. to Hamilton

Have a flexible travel schedule? Discover the best time to fly to Hamilton from Washington, D.C. 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. to Hamilton

How far ahead should I book a flight from Washington, D.C. to Hamilton?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Hamilton. Price data was last updated on April 3, 2026.

Booking 77 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Hamilton. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. to Hamilton?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Hamilton (average of $105). Flying from Washington, D.C. to Hamilton in March is currently the most expensive (average of $211). 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.

What is the cheapest time of day to fly from WAS to H4M?

Find hourly flight availability from Washington, D.C. to Hamilton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 10, 2026.

When flying from Washington, D.C. to Hamilton, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 43% versus a flight in the morning.

What is the cheapest day to fly from Washington, D.C. to Hamilton?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Hamilton. Price data was last updated on November 25, 2025.

Travelers seeking maximum savings on their Washington, D.C. to Hamilton flight should consider departing on Sunday mornings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Washington, D.C. to Hamilton

Explore weekly flight availability from Washington, D.C. to Hamilton. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 10, 2026.

The most flights from WAS to H4M are scheduled on a Monday (33 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

How much does it cost to fly round-trip from Washington, D.C. to Hamilton?

Reviews of airlines servicing Hamilton

Get insights into the airlines that provide service to Hamilton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hamilton. Reviews last updated April 10, 2026.
Read through reviews of airlines operating flights from Washington, D.C. to Hamilton, such as Porter Airlines,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
432 reviews

Entertainment

7.0

Comfort

8.0

Overall

8.0

Food

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
432 reviews
Porter Airlines
8.0
Very good
432 reviews

Entertainment

7.0

Comfort

8.0

Overall

8.0

Food

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Delta
7.9
Good
8,404 reviews
Porter Airlines
8.0
Very good
432 reviews

Entertainment

7.0

Comfort

8.0

Overall

8.0

Food

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,567 reviews
Porter Airlines
8.0
Very good
432 reviews

Entertainment

7.0

Comfort

8.0

Overall

8.0

Food

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
American Airlines
7.1
Good
11,568 reviews
Porter Airlines
8.0
Very good
432 reviews

Entertainment

7.0

Comfort

8.0

Overall

8.0

Food

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,915 reviews
Porter Airlines
8.0
Very good
432 reviews

Entertainment

7.0

Comfort

8.0

Overall

8.0

Food

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Related info for your journey

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

  • How long is the flight from Washington, D.C. to Hamilton?

    Airlines like Delta and United Airlines fly from Washington, D.C. to Hamilton in about 4h 01m. The time it takes to get you to your destination can typically vary by up to 1h 09m. The distance from Washington, D.C. to Hamilton is about 359 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Washington, D.C. to Hamilton one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. to Hamilton are Air Canada ($88), American Airlines ($106), and United Airlines ($106).

  • What are the most popular routes from Washington, D.C. to Hamilton?

    The most popular route from Washington, D.C. to Hamilton is Washington, D.C. Reagan-National - Toronto Pearson Intl. You may also consider Washington, D.C. Dulles Intl - Toronto Pearson Intl or Baltimore/Washington - Toronto Pearson Intl.

  • What are the most reliable airlines from Washington, D.C. to Hamilton?

    The top 3 most reliable airlines when flying from Washington, D.C. to Hamilton are ANA (80%), Avianca (71%) and Copa Airlines (69%).

  • What are the cheapest flights from Washington, D.C. to Hamilton?

    On average you can expect to pay $1,154 for a flight from Washington, D.C. to Hamilton. The cheapest flight overall is $139 while the most popular route, (Washington, D.C. Reagan-National - Toronto Pearson Intl) is currently priced at $286.

  • Can I find deals for flights from Washington, D.C. to Hamilton that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Hamilton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Hamilton?

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

  • Can I find deals for business class flights from Washington, D.C. to Hamilton?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Hamilton?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Hamilton (average of $105). Flying from Washington, D.C. to Hamilton in March is currently the most expensive (average of $211). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Washington, D.C. to Hamilton

Discover the top 7 airlines that operate flights from Washington, D.C. to Hamilton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$54Average$333FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$135Average$323FlexibilityNo cancel feeOn-time69%
DeltaCheapest$138Average$310FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$176Average$220FlexibilityNo cancel feeOn-time50%
Air CanadaCheapest$184Average$349FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$264Average$372FlexibilityNo cancel feeOn-time71%
WestJetCheapest$349Average$598FlexibilityNo cancel feeOn-time60%

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