Cheap flights from Ontario (ONT) to District of Columbia from $90

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — IAD
may. 21 — may. 281

How far in advance should I book a flight from Ontario to District of Columbia?

Find a great deal and save up to 67% by booking at least 29 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to District of Columbia within the next two weeks, with the cheapest ticket starting at $376.

What is the cheapest month to fly from Ontario to District of Columbia?

Our data shows that September tends to be the cheapest month to fly to District of Columbia from Ontario. Users have commonly found prices around $358 for the month, but tickets can be as low as $109. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Ontario to District of Columbia (ONT - DC)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to District of Columbia as you normally would.

Cheap American Airlines flights from Ontario to District of Columbia

Explore cheap flight options specifically provided by American Airlines for the route between Ontario and District of Columbia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Take a look at some of the lowest-priced American Airlines flights heading from Ontario to District of Columbia. Be sure to come back soon if the deals available don't appeal to you at this time.
sáb. 9/711:00 pmONT - IAD
1 stop6h 36mAmerican Airlines
mar. 9/105:31 pmIAD - ONT
1 stop7h 29mAmerican Airlines
Deal found 5/15$287
vie. 8/1610:35 pmONT - IAD
1 stop7h 09mAmerican Airlines
lun. 8/195:29 pmIAD - ONT
1 stop7h 34mAmerican Airlines
Deal found 5/16$289
sáb. 9/2811:00 pmONT - IAD
1 stop6h 36mAmerican Airlines
mar. 10/15:31 pmIAD - ONT
2 stops8h 55mAmerican Airlines
Deal found 5/15$292
mié. 5/2912:50 pmONT - IAD
1 stop7h 47mAmerican Airlines
mar. 6/43:27 pmIAD - ONT
2 stops10h 02mAmerican Airlines
Deal found 5/15$294
lun. 8/1911:59 pmONT - IAD
2 stops9h 39mAmerican Airlines
mié. 8/281:10 pmIAD - ONT
2 stops11h 53mAmerican Airlines
Deal found 5/15$299
lun. 6/1010:45 pmONT - IAD
1 stop7h 13mAmerican Airlines
mié. 6/125:43 pmIAD - ONT
1 stop8h 16mAmerican Airlines
Deal found 5/15$321
lun. 6/2410:45 pmONT - IAD
1 stop7h 13mAmerican Airlines
lun. 7/19:28 amIAD - ONT
2 stops12h 29mAmerican Airlines
Deal found 5/15$326
lun. 6/107:26 pmONT - IAD
2 stops10h 32mAmerican Airlines
mié. 6/125:43 pmIAD - ONT
1 stop8h 16mAmerican Airlines
Deal found 5/15$328
lun. 8/1910:35 pmONT - IAD
1 stop7h 09mAmerican Airlines
mié. 8/281:10 pmIAD - ONT
1 stop10h 11mAmerican Airlines
Deal found 5/15$331

Cheap Delta flights from Ontario to District of Columbia

Explore cheap flight options specifically provided by Delta for the route between Ontario and District of Columbia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Have a look at some of the cheapest available Delta flights departing from Ontario and landing in District of Columbia. Make sure to examine the flight information before completing your reservation.
jue. 5/301:20 pmONT - IAD
1 stop7h 33mDelta
jue. 6/276:00 amIAD - ONT
1 stop7h 20mDelta
Deal found 5/15$290
sáb. 9/77:00 amONT - IAD
2 stops12h 46mDelta
mar. 9/1012:35 pmIAD - ONT
1 stop9h 47mDelta
Deal found 5/15$295
mar. 8/610:59 pmONT - IAD
1 stop8h 00mDelta
mar. 8/137:30 amIAD - ONT
1 stop7h 53mDelta
Deal found 5/15$314
sáb. 6/81:25 pmONT - IAD
1 stop7h 34mDelta
sáb. 6/226:00 amIAD - ONT
1 stop7h 20mDelta
Deal found 5/15$324
sáb. 7/206:55 amONT - IAD
2 stops13h 08mDelta
mar. 7/236:00 amIAD - ONT
1 stop7h 10mDelta
Deal found 5/15$329
mié. 5/296:42 pmONT - DCA
2 stops12h 49mDelta
mar. 6/410:05 amDCA - ONT
2 stops13h 01mDelta
Deal found 5/16$334
jue. 8/227:00 amONT - DCA
1 stop7h 00mDelta
vie. 9/65:20 pmDCA - ONT
1 stop8h 15mDelta
Deal found 5/15$344
jue. 9/261:42 pmONT - IAD
1 stop7h 00mDelta
sáb. 9/287:10 amIAD - ONT
1 stop7h 12mDelta
Deal found 5/15$374
mié. 5/2212:50 pmONT - IAD
1 stop8h 05mDelta
mié. 5/292:59 pmIAD - ONT
1 stop8h 07mDelta
Deal found 5/15$417

Cheap Ontario to District of Columbia flights in May & June 2024

Find cheap flight options from Ontario to District of Columbia specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on mayo 16, 2024.
These are some of the best deals we've found on flights to District of Columbia in 2024 at this time. For more flight deals, be sure to check back very soon.
mié. 5/292:35 pmONT - DCA
1 stop24h 32mFrontier
mar. 6/47:00 amDCA - ONT
1 stop9h 24mFrontier
Deal found 5/15$197
lun. 6/1012:59 amONT - DCA
1 stop8h 06mFrontier
mar. 6/186:59 pmDCA - ONT
1 stop15h 03mFrontier
Deal found 5/15$200
mar. 6/412:59 amONT - DCA
1 stop17h 58mFrontier
mar. 6/117:00 amDCA - ONT
1 stop19h 59mFrontier
Deal found 5/15$202
mié. 5/2912:59 amONT - DCA
1 stop8h 04mFrontier
sáb. 6/16:57 pmDCA - ONT
1 stop8h 02mFrontier
Deal found 5/15$203
lun. 6/312:59 amONT - DCA
1 stop8h 04mFrontier
mié. 6/127:00 amDCA - ONT
1 stop19h 49mFrontier
Deal found 5/15$205
lun. 6/312:59 amONT - DCA
1 stop8h 04mFrontier
mar. 6/117:00 amDCA - ONT
1 stop19h 59mFrontier
Deal found 5/15$206
mar. 6/1112:59 amONT - DCA
1 stop8h 02mFrontier
mar. 6/187:00 amDCA - ONT
1 stop27h 02mFrontier
Deal found 5/16$208
lun. 6/312:59 amONT - DCA
1 stop8h 04mFrontier
vie. 6/76:59 pmDCA - ONT
1 stop7h 41mFrontier
Deal found 5/15$209
lun. 6/312:59 amONT - DCA
1 stop8h 04mFrontier
dom. 6/97:00 amDCA - ONT
1 stop26h 23mFrontier
Deal found 5/15$210

Ontario to District of Columbia 2024 flight deals

Discover exclusive flight deals for travel between Ontario and District of Columbia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
These are some of the best deals we've found on flights to District of Columbia in 2024 at this time. For more flight deals, be sure to check back very soon.
mié. 5/292:35 pmONT - DCA
1 stop24h 32mFrontier
mar. 6/47:00 amDCA - ONT
1 stop9h 24mFrontier
Deal found 5/15$197
lun. 8/265:39 pmONT - DCA
1 stop25h 20mFrontier
mar. 9/37:00 amDCA - ONT
1 stop8h 32mFrontier
Deal found 5/15$199
lun. 6/1012:59 amONT - DCA
1 stop8h 06mFrontier
mar. 6/186:59 pmDCA - ONT
1 stop15h 03mFrontier
Deal found 5/15$200
vie. 8/238:27 pmONT - DCA
1 stop12h 42mFrontier
mar. 9/312:59 pmDCA - ONT
1 stop13h 40mFrontier
Deal found 5/16$201
mar. 6/412:59 amONT - DCA
1 stop17h 58mFrontier
mar. 6/117:00 amDCA - ONT
1 stop19h 59mFrontier
Deal found 5/15$202
lun. 8/1212:49 amONT - DCA
1 stop8h 20mFrontier
sáb. 9/76:59 pmDCA - ONT
1 stop7h 45mFrontier
Deal found 5/15$203
vie. 8/238:27 pmONT - DCA
1 stop12h 42mFrontier
mié. 8/286:59 pmDCA - ONT
1 stop7h 40mFrontier
Deal found 5/15$204
lun. 6/312:59 amONT - DCA
1 stop8h 04mFrontier
mié. 6/127:00 amDCA - ONT
1 stop19h 49mFrontier
Deal found 5/15$205
lun. 6/312:59 amONT - DCA
1 stop8h 04mFrontier
mar. 6/117:00 amDCA - ONT
1 stop19h 59mFrontier
Deal found 5/15$206

Ontario to District of Columbia flights leaving soon

Find last-minute flight options from Ontario to District of Columbia for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Have a look at some of the flights available from Ontario to District of Columbia departing last-minute. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
dom. 5/2612:59 amONT - DCA
1 stop8h 04mFrontier
mié. 5/296:57 pmDCA - ONT
1 stop8h 02mFrontier
Deal found 5/16$257
jue. 5/2312:59 amONT - DCA
1 stop8h 04mFrontier
mié. 6/512:53 pmDCA - ONT
1 stop13h 56mFrontier
Deal found 5/15$259
vie. 5/2412:59 amONT - DCA
1 stop18h 00mFrontier
dom. 5/267:00 amDCA - ONT
1 stop19h 59mFrontier
Deal found 5/15$265
mar. 5/2112:59 amONT - DCA
1 stop18h 00mFrontier
mié. 5/297:00 amDCA - ONT
1 stop19h 59mFrontier
Deal found 5/16$269
mar. 5/2112:59 amONT - DCA
1 stop8h 04mFrontier
mié. 5/296:57 pmDCA - ONT
1 stop8h 02mFrontier
Deal found 5/15$271
mar. 5/2112:59 amONT - DCA
1 stop8h 04mFrontier
mié. 5/296:57 pmDCA - ONT
1 stop8h 02mFrontier
Deal found 5/15$272
sáb. 5/2512:59 amONT - DCA
1 stop8h 04mFrontier
mar. 6/46:57 pmDCA - ONT
1 stop8h 02mFrontier
Deal found 5/15$274
vie. 5/248:54 pmONT - DCA
1 stop12h 09mFrontier
mié. 5/296:57 pmDCA - ONT
1 stop8h 02mFrontier
Deal found 5/16$277
dom. 5/262:04 pmONT - DCA
1 stop18h 59mFrontier
mar. 6/46:57 pmDCA - ONT
1 stop8h 02mFrontier
Deal found 5/15$279

One-way flights to District of Columbia from Ontario

Search for one-way flight options from Ontario to District of Columbia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
If you're seeking multiple options on one-way flights from Ontario to District of Columbia, be sure to check out these deals, which are updated often. Users needing a return flight from Ontario to District of Columbia should utilize the search form above.
mar. 6/412:59 amONT - DCA
1 stop8h 02mFrontier
Deal found 5/15$90
mar. 6/1112:59 amONT - DCA
1 stop8h 02mFrontier
Deal found 5/16$94
mié. 9/48:27 pmONT - DCA
1 stop12h 42mFrontier
Deal found 5/14$96
mar. 6/412:59 amONT - DCA
1 stop8h 02mFrontier
Deal found 5/16$98
vie. 5/2412:59 amONT - DCA
1 stop14h 08mFrontier
Deal found 5/15$101
mié. 5/2912:59 amONT - DCA
1 stop8h 04mFrontier
Deal found 5/15$104
mié. 5/2912:59 amONT - DCA
1 stop8h 04mFrontier
Deal found 5/15$105
mié. 5/2912:59 amONT - DCA
1 stop8h 04mFrontier
Deal found 5/16$109
mar. 7/28:29 amONT - DCA
1 stop6h 38mFrontier
Deal found 5/15$110

Find flights from Ontario to District of Columbia within your budget

Customize your flight search to find flights from Ontario to District of Columbia 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 2,637,452 searches. Data last updated mayo 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$176 - $507

Route

Depart

Return

Price

OntarioWashington, D.C. Reagan-National

ONT - DCA

ONTDCA

Ontario

mié. 9/4

1 stop12h 42m

Washington, D.C. Reagan-National

mar. 9/10

1 stop13h 40m

$176

OntarioWashington, D.C. Reagan-National

ONT - DCA

ONTDCA

Ontario

vie. 9/6

1 stop8h 20m

Washington, D.C. Reagan-National

sáb. 9/14

1 stop7h 45m

$178

OntarioWashington, D.C. Reagan-National

ONT - DCA

ONTDCA

Ontario

vie. 9/6

1 stop8h 20m

Washington, D.C. Reagan-National

mar. 9/10

1 stop7h 40m

$180

OntarioWashington, D.C. Reagan-National

ONT - DCA

ONTDCA

Ontario

mié. 5/29

1 stop18h 28m

Washington, D.C. Reagan-National

sáb. 6/1

1 stop8h 02m

$182

OntarioWashington, D.C. Reagan-National

ONT - DCA

ONTDCA

Ontario

vie. 8/23

1 stop8h 20m

Washington, D.C. Reagan-National

sáb. 8/24

1 stop7h 45m

$186

OntarioWashington, D.C. Dulles Intl

ONT - IAD

ONTIAD

Ontario

sáb. 9/7

1 stop6h 36m

Washington, D.C. Dulles Intl

mar. 9/10

1 stop7h 29m

$287

OntarioWashington, D.C. Dulles Intl

ONT - IAD

ONTIAD

Ontario

jue. 5/30

1 stop7h 33m

Washington, D.C. Dulles Intl

jue. 6/27

1 stop7h 20m

$290

OntarioWashington, D.C. Dulles Intl

ONT - IAD

ONTIAD

Ontario

vie. 6/7

1 stop8h 00m

Washington, D.C. Dulles Intl

mar. 7/16

1 stop8h 14m

$319

OntarioWashington, D.C. Dulles Intl

ONT - IAD

ONTIAD

Ontario

mar. 10/8

2 stops14h 59m

Washington, D.C. Dulles Intl

vie. 10/11

1 stop18h 48m

$507

Flights are sorted by cheapest first

Deals found on 5/15

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated mayo 16, 2024.
Get a feel of what it's like to fly with American Airlines, Delta and United Airlines from Ontario to District of Columbia by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,040 reviews

Entertainment

7.8

Overall

8.2

Food

7.3

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.2
Very good
6,040 reviews
Southwest
8.2
Very good
6,040 reviews

Entertainment

7.8

Overall

8.2

Food

7.3

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.1
Very good
9,157 reviews
Southwest
8.2
Very good
6,040 reviews

Entertainment

7.8

Overall

8.2

Food

7.3

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.0
Very good
10,673 reviews
Southwest
8.2
Very good
6,040 reviews

Entertainment

7.8

Overall

8.2

Food

7.3

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

7.5
Good
2,919 reviews
Southwest
8.2
Very good
6,040 reviews

Entertainment

7.8

Overall

8.2

Food

7.3

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

7.5
Good
3,765 reviews
Southwest
8.2
Very good
6,040 reviews

Entertainment

7.8

Overall

8.2

Food

7.3

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to District of Columbia. 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 from for flights from Ontario to District of Columbia?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to District of Columbia. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • Can I find flights from Ontario to District of Columbia for under $200 on Cheapflights?

    Yes, there are multiple flights from Ontario to District of Columbia for under $200. The cheapest flight booked recently is on Frontier for just $176, but on average you can expect to pay $197.

  • Are there last-minute flights available from Ontario to District of Columbia for under $300?

    There are currently 20+ open flights from Ontario to District of Columbia within the next 7 days for less than $300.

  • What are the most popular airlines that fly from Ontario to District of Columbia?

  • What does ONT to IAD mean?

    ONT stands for Ontario Airport, while IAD stands for Washington, D.C. Dulles Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA).

  • Can I find deals for flights from Ontario to District of Columbia that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to District of Columbia flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to District of Columbia with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to District of Columbia flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Ontario to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to District of Columbia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to District of Columbia.

  • Can I find deals for business class flights from Ontario to District of Columbia?

    Yes. Cheapflights offers flight deals from Ontario to District of Columbia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to District of Columbia that allow pets onboard?

    Many airlines flying from Ontario to District of Columbia offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to District of Columbia?

    Yes, you can often find last-minute deals on Ontario to District of Columbia flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to District of Columbia flight deals updated?

    The Ontario to District of Columbia flight deals you see on this page were last updated on 5/16.

See more FAQs

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Alternative routes for Ontario to District of Columbia
See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Ontario to District of Columbia

Discover the top 6 airlines that operate flights from Ontario to District of Columbia. 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 2,637,452 searches. Data last updated mayo 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$118Average$274FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Alaska AirlinesCheapest$132Average$295FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
FrontierCheapest$147Average$280FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapest$189Average$581FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$193Average$498FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$256Average$422FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Search flights from Ontario to District of Columbia by cabin class

Find flights from Ontario to District of Columbia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to District of Columbia?

Deals for Ontario to District of Columbia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ontario to District of Columbia?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to District of Columbia for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario to District of Columbia with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to District of Columbia flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to District of Columbia become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to District of Columbia on Cheapflights with our Price Alert feature and get notified when better prices are available.

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