Cheap flights from Ontario to Washington, D.C. from $149

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1 stop
Mon, Jul 21
Ontario ONTWashington, D.C. DCA

$149
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1 stop
Sat, Jul 26
Ontario ONTWashington, D.C. DCA

$163
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1 stop
Sat, Jul 26
Ontario ONTWashington, D.C. DCA

$163
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1 stop
Thu, Jul 24
Ontario ONTWashington, D.C. DCA

$171
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1 stop
Sun, Jul 20
Ontario ONTWashington, D.C. DCA

$176
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1 stop
Sun, Jul 20
Ontario ONTWashington, D.C. DCA

$176
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Prices updated:

1 stop
Mon, Jul 21 – Wed, Jul 23
Ontario ONTWashington, D.C. DCA

$296
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1 stop
Tue, Jul 22 – Sat, Jul 26
Ontario ONTWashington, D.C. DCA

$306
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1 stop
Sat, Jul 26 – Tue, Jul 29
Ontario ONTWashington, D.C. DCA

$312
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1 stop
Thu, Jul 24 – Sat, Jul 26
Ontario ONTWashington, D.C. DCA

$319
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1 stop
Sat, Jul 26 – Mon, Jul 28
Ontario ONTWashington, D.C. DCA

$321
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1 stop
Sun, Jul 20 – Wed, Jul 23
Ontario ONTWashington, D.C. DCA

$323
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Prices updated:

How much do flights to Washington, D.C. cost?

Key info about flying to Washington, D.C.

Depart from
Ontario International
Arrive to
Washington Dulles International
Average flights per week
211
Flight distance
Worth visiting
Lincoln Memorial - National Mall

Check-in for a flight from Ontario to Washington, D.C.

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUANo
Alaska AirlinesASAASNo
Hawaiian AirlinesHALHANo
Frontier AirlinesFFTF9No

Weather in Washington, D.C.

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January5°C-1°C
February8°C0°C
March12°C3°C
April19°C8°C
May23°C13°C
June28°C18°C
July31°C21°C
August30°C20°C
September26°C17°C
October20°C11°C
November13°C5°C
December8°C1°C
Hottest Month
31°C
July
Coldest month
-1°C
January
Sunny days
267
days per year
Snow days
8
days per year

14 day forecast

Sunday
29 Jun
36°C26°C
6 Jul
36°C21°C
Monday
30 Jun
87%
29°C24°C
7 Jul
84%
36°C23°C
Tuesday
1 Jul
81%
32°C23°C
8 Jul
75%
36°C23°C
Wednesday
2 Jul
89%
32°C21°C
9 Jul
88%
35°C22°C
Thursday
3 Jul
86%
32°C21°C
10 Jul
88%
29°C21°C
Friday
4 Jul
79%
29°C20°C
11 Jul
85%
27°C19°C
Saturday
5 Jul
31°C17°C
12 Jul
81%
28°C21°C
Book your trip to arrive at Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National. The most popular airlines for this route are United Airlines, Alaska Airlines, Hawaiian Airlines, and Frontier Airlines. Ontario and Washington, D.C. have 211 direct flights per week. When you arrive at Washington, D.C., consider visiting Lincoln Memorial, and National Mall.

Frequently asked questions

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When’s the best time to travel between Ontario and Washington, D.C.?
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What time do nonstop (direct) flights between Ontario and Washington, D.C. depart?
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Flights from Ontario

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Popular routes

The nearest countries with flights to Washington, D.C.

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