Cheap flights from Dulles Intl (IAD) to Ontario (ONT) from $144
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.
The best prices from Washington, D.C. Dulles Intl to Ontario are usually found in January or September, booked 72 days in advance, depart on a Tuesday or Friday and return on a Tuesday
Cheap flight deals from Dulles Intl to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Ontario (ONT). 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 May 9, 2024.
Popular in | June |
|---|---|
Cheapest in | January |
Round-trip from | $238 |
One-way from | $188 |
What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Ontario?
Flights from Washington, D.C. Dulles Intl Airport to Ontario are found to be more expensive on Sunday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ontario.
How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Ontario?
To save on the cost of your flight from Washington, D.C. Dulles Intl Airport to Ontario, book at least 31 days before your planned departure. Booking around this time can save you about 90% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $364 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $592.
What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Ontario?
September can be a great time to fly to Ontario from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $352. Cheapflights users have found deals in the month of September for as cheap as $106. The most expensive prices can be found in the month of December.
When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Ontario (IAD - ONT)?
It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Ontario in the evening. Doing so could potentially save you 23% on the flight price compared to flying in the afternoon, which is usually more expensive.
Cheap United Airlines flights from Dulles Intl to Ontario
Explore cheap flight options specifically provided by United Airlines for the route between Dulles Intl and Ontario. 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 2,717,708 searches. Data last updated May 9, 2024.
Take a look at some of the lowest-priced United Airlines flights heading from Washington, D.C. to Ontario. Come back soon if you're not finding the exact deal you're looking for.
Cheap Delta flights from Dulles Intl to Ontario
Explore cheap flight options specifically provided by Delta for the route between Dulles Intl and Ontario. 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 2,717,708 searches. Data last updated May 9, 2024.
Browse through some of the cheapest Delta flights traveling from Washington, D.C. to Ontario. Check back soon if you're not seeing flights that suit your needs.
Cheap Dulles Intl to Ontario flights in May & June 2024
Find cheap flight options from Dulles Intl to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,717,708 searches. Prices were last updated on May 9, 2024.
Check out some of the best flight deals from Washington, D.C. to Ontario in 2024. Check back in a little while for more flight options.
Dulles Intl to Ontario 2024 flight deals
Discover exclusive flight deals for travel between Dulles Intl and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
Check out some of the best flight deals from Washington, D.C. to Ontario in 2024. Check back in a little while for more flight options.
Dulles Intl to Ontario flights leaving soon
Find last-minute flight options from Dulles Intl to Ontario 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 2,717,708 searches. Data last updated May 9, 2024.
Have a look at some of the last-minute flights available departing from Washington, D.C. to Ontario. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
One-way flights to Ontario from Dulles Intl
Search for one-way flight options from Dulles Intl to Ontario. 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 2,717,708 searches. Data last updated May 9, 2024.
Users in need of a one-way flight from Washington, D.C. to Ontario can choose from these deals. For those needing a return trip from Washington, D.C., there is a search form available above.
Find flights from Dulles Intl to Ontario within your budget
Customize your flight search to find flights from Dulles Intl to Ontario 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 2,717,708 searches. Data last updated May 9, 2024.
Fly from
Fly to
Budget
$285 - $448
Route
Depart
Return
Price
Washington, D.C. Dulles IntlOntario
IAD - ONT
IADONT
Washington, D.C. Dulles Intl
Fri 11/1
1 stop10h 50m
Ontario
Sat 11/2
1 stop6h 25m
Washington, D.C. Dulles IntlOntario
IAD - ONT
IADONT
Washington, D.C. Dulles Intl
Wed 5/29
1 stop7h 45m
Ontario
Sat 6/8
1 stop7h 13m
Washington, D.C. Dulles IntlOntario
IAD - ONT
IADONT
Washington, D.C. Dulles Intl
Tue 7/30
1 stop8h 29m
Ontario
Wed 8/7
1 stop9h 36m
Washington, D.C. Dulles IntlOntario
IAD - ONT
IADONT
Washington, D.C. Dulles Intl
Tue 9/17
1 stop7h 22m
Ontario
Tue 9/24
1 stop7h 00m
Washington, D.C. Dulles IntlOntario
IAD - ONT
IADONT
Washington, D.C. Dulles Intl
Tue 7/30
1 stop8h 29m
Ontario
Tue 8/6
2 stops13h 04m
Washington, D.C. Dulles IntlOntario
IAD - ONT
IADONT
Washington, D.C. Dulles Intl
Sat 7/20
2 stops12h 04m
Ontario
Thu 8/1
1 stop9h 36m
Washington, D.C. Dulles IntlOntario
IAD - ONT
IADONT
Washington, D.C. Dulles Intl
Sat 6/1
1 stop8h 39m
Ontario
Wed 6/5
2 stops13h 53m
Washington, D.C. Dulles IntlOntario
IAD - ONT
IADONT
Washington, D.C. Dulles Intl
Sat 5/25
1 stop8h 40m
Ontario
Thu 5/30
1 stop8h 43m
Washington, D.C. Dulles IntlOntario
IAD - ONT
IADONT
Washington, D.C. Dulles Intl
Wed 5/29
1 stop11h 26m
Ontario
Tue 6/4
1 stop10h 59m
When is the best time to book a flight from Washington, D.C. Dulles Intl Airport to Ontario?
Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Ontario. Price data was last updated on May 3, 2024.
The best time to book flights from Washington, D.C. Dulles Intl Airport to Ontario is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Ontario?
Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Ontario. Price data was last updated on May 5, 2024.
Average price of flights to Ontario by month
Plan your trip from Dulles Intl to Ontario by taking into account the cheapest months to travel. The average price of a one-way flight from Dulles Intl to Ontario is currently $157 while a round-trip flight costs $309. Price data was last updated on May 5, 2024.
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ontario (average of $237). Flying from Washington, D.C. Dulles Intl Airport to Ontario in June is currently the most expensive (average of $337). 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.
January
$268
February
$287
March
$281
April
$256
May
$268
June
$337
July
$337
August
$287
September
$258
October
$237
November
$267
December
$272
Temperature and rainfall in Ontario by month
Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.
LAX Temperature | 57.2 - 73.4 °F |
|---|
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated May 9, 2024.
Read reviews from past customers who have flown United Airlines, Delta and American Airlines from Washington, D.C. to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Entertainment
Comfort
Overall
Boarding
Crew
Reviews
We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.
Food
Entertainment
Comfort
Overall
Boarding
Crew
Reviews
We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.
Food
Entertainment
Comfort
Overall
Boarding
Crew
Reviews
We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.
Food
Entertainment
Comfort
Overall
Boarding
Crew
Reviews
We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.
Food
Entertainment
Comfort
Overall
Boarding
Crew
Reviews
We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.
Food
Entertainment
Comfort
Overall
Boarding
Crew
Reviews
We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Dulles Intl to OntarioSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Dulles Intl to Ontario
Discover the top 3 airlines that operate flights from Dulles Intl to Ontario. 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 2,717,708 searches. Data last updated May 9, 2024.
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Find flights from Dulles Intl to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Can Cheapflights find flights from Dulles Intl to Ontario with no change fees?
Need flexible booking options for your flight to Ontario from Dulles Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
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Yes! Start tracking prices for Dulles Intl to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.