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$361+ Cheap flights from Dublin (DUB) to Dulles Intl (IAD)
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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — IAD
Mar 23 — Mar 301
1 adult, Economy
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Find cheap flights from Dublin to Dulles Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.The best prices from Dublin to Washington, D.C. Dulles Intl are usually found in February or January, booked 73 days in advance, depart on a Monday or Thursday and return on a Tuesday
Cheap flight deals from Dublin to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Dulles Intl (IAD). 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 March 18, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $431 (SmartFares) |
One-way from | $361 (Expedia) |
Popular in | July |
Cheapest in | February |
Average price | $519 |
Good round-trip deal | $654 or less |
Good one-way deal | $443 or less |
Find flight deals from Dublin to Dulles Intl
Cheapest flights from Dublin to Dulles IntlExplore the most affordable flight options available from Dublin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 18, 2025.
Explore the most affordable flight options available from Dublin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 18, 2025.
This oojo deal was found by Cheapflights users on 3/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:30 amDUB - IAD
1 stop11h 50mIcelandair
Fri 12/57:40 pmIAD - DUB
1 stop9h 35mIcelandair
Deal found 3/18![Icelandair logo]()
$419
This SmartFares deal was found by Cheapflights users on 3/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/212:40 pmDUB - IAD
1 stop12h 19mScandinavian Airlines
Sun 4/610:05 pmIAD - DUB
1 stop15h 10mScandinavian Airlines
Deal found 3/17![Scandinavian Airlines logo]()
$434
This TravelUp deal was found by Cheapflights users on 3/17. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/112:45 pmDUB - IAD
1 stop12h 20mBritish Airways
Thu 5/810:40 pmIAD - DUB
1 stop10h 55mBritish Airways
Deal found 3/17![British Airways logo]()
$473
This TravelUp deal was found by Cheapflights users on 3/17. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/55:55 amDUB - IAD
1 stop14h 40mKLM
Sun 4/205:25 pmIAD - DUB
1 stop12h 00mKLM
Deal found 3/17![KLM logo]()
$479
This Bravofly deal was found by Cheapflights users on 3/17. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2412:30 pmDUB - IAD
Nonstop8h 10mAer Lingus
Wed 4/25:20 pmIAD - DUB
Nonstop6h 50mAer Lingus
Deal found 3/17![Aer Lingus logo]()
$487
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/245:55 amDUB - IAD
1 stop14h 50mDelta
Sun 3/305:25 pmIAD - DUB
1 stop14h 10mDelta
Deal found 3/17![Delta logo]()
$490
This American Airlines deal was found by Cheapflights users on 3/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/319:30 amDUB - IAD
2 stops15h 04mAmerican Airlines
Tue 9/1610:40 pmIAD - DUB
1 stop11h 05mAmerican Airlines
Deal found 3/17![American Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 3/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/139:20 amDUB - IAD
1 stop11h 54mUnited Airlines
Sat 9/1310:05 pmIAD - DUB
1 stop29h 10mUnited Airlines
Deal found 3/17![United Airlines logo]()
$525
This Mytrip deal was found by Cheapflights users on 3/17. 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.
Wed 4/27:15 pmDUB - IAD
2 stops29h 05mMultiple Airlines
Mon 4/78:30 pmIAD - DUB
2 stops21h 30mMultiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$587
This TAP AIR PORTUGAL deal was found by Cheapflights users on 3/18. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:50 pmDUB - IAD
1 stop25h 30mTAP AIR PORTUGAL
Tue 10/286:30 pmIAD - DUB
1 stop17h 40mTAP AIR PORTUGAL
Deal found 3/18![TAP AIR PORTUGAL logo]()
$600
This TravelUp deal was found by Cheapflights users on 3/18. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/212:30 pmDUB - IAD
Nonstop8h 00mLufthansa
Mon 4/710:05 pmIAD - DUB
Nonstop7h 15mLufthansa
Deal found 3/18![Lufthansa logo]()
$612
This Gotogate deal was found by Cheapflights users on 3/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/246:40 pmDUB - IAD
1 stop26h 45mSWISS
Mon 3/318:45 pmIAD - DUB
1 stop16h 05mSWISS
Deal found 3/17![SWISS logo]()
$618
Find flights from Dublin to Dulles Intl within your budget
Customize your flight search to find flights from Dublin to Dulles Intl 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 March 18, 2025.
Fly from
Dublin
Fly to
Dulles Intl
Route
Depart
Return
Price
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 9/3
12:15 pm-7:20 pm
1 stop12h 05m
Washington, D.C. Dulles Intl
Sat 9/13
8:30 pm-11:05 am
1 stop9h 35m
$431
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 4/2
12:40 pm-7:59 pm
1 stop12h 19m
Washington, D.C. Dulles Intl
Sun 4/6
10:05 pm-6:15 pm
1 stop15h 10m
$434
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Thu 5/1
12:45 pm-8:05 pm
1 stop12h 20m
Washington, D.C. Dulles Intl
Thu 5/8
10:40 pm-2:35 pm
1 stop10h 55m
$473
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Sat 4/5
5:55 am-3:35 pm
1 stop14h 40m
Washington, D.C. Dulles Intl
Sun 4/20
5:25 pm-10:25 am
1 stop12h 00m
$479
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Fri 3/28
5:55 am-4:45 pm
1 stop14h 50m
Washington, D.C. Dulles Intl
Thu 4/3
9:20 pm-3:00 pm
1 stop12h 40m
$493
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Thu 5/1
4:00 pm-6:55 pm
Nonstop7h 55m
Washington, D.C. Dulles Intl
Thu 5/8
5:20 pm-5:10 am
Nonstop6h 50m
$502
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Sun 8/31
9:30 am-7:34 pm
2 stops15h 04m
Washington, D.C. Dulles Intl
Tue 9/16
10:40 pm-2:45 pm
1 stop11h 05m
$504
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Sat 9/13
9:20 am-4:14 pm
1 stop11h 54m
Washington, D.C. Dulles Intl
Sat 9/13
10:05 pm-8:15 am
1 stop29h 10m
$525
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 4/2
7:15 pm-7:20 pm
2 stops29h 05m
Washington, D.C. Dulles Intl
Mon 4/7
8:30 pm-11:00 pm
2 stops21h 30m
$587
DublinWashington, D.C.
DUB - IAD
DUBIAD
Dublin
Wed 4/2
12:30 pm-3:30 pm
Nonstop8h 00m
Washington, D.C. Dulles Intl
Mon 4/7
10:05 pm-10:20 am
Nonstop7h 15m
$612
Showing 1-10 of 22 results
Compare providers for flights from Dublin to Dulles Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dublin to Dulles Intl in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Dublin-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dublin-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Dublin-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Dublin-Washington, D.C. Dulles Intl Airport 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 Dublin-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
The best insider tips for Dublin to Washington, D.C. Dulles Intl Airport flights
Find out what our experts recommend to make the most of your Dublin to Washington, D.C. Dulles Intl Airport trip
Airlines
![Aer Lingus]()
Aer Lingus
![United Airlines]()
United Airlines
Polaris passengers access exclusive lounges with showers and dining at IAD.
Premium Plus offers extra legroom and upgraded meals on international flights.
Airports
Our travel experts
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Best time to book a flight from Dublin to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Dublin 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.
Travel insights for flights from Dublin to Dulles Intl
Get recent, data-driven insights about flights from Dublin to Dulles Intl including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Dublin to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Dublin to Dulles Intl. Price data was last updated on March 14, 2025.
The price you pay for your flight from Dublin to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Dublin to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Dublin to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $387). 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 DUB to IAD?
Find hourly flight availability from Dublin to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 18, 2025.
It’s typically best to fly out from Dublin to Washington, D.C. Dulles Intl Airport in the afternoon. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.
Weekly flight availability from Dublin to Washington, D.C. Dulles Intl Airport
Explore weekly flight availability from Dublin to Dulles Intl. 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 March 18, 2025.
The most flights from DUB to IAD are scheduled on a Monday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).
Rainfall in Dulles Intl by month
Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.
Temperature in Dulles Intl by month
Plan your trip to Dulles Intl by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated March 18, 2025.
To help decide which airline to fly from Dublin to Washington, D.C., see what other customers have to say about Delta, KLM and United Airlines. 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
7.3
Boarding
8.2
Comfort
7.9
Overall
8.0
Crew
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.3
Boarding
8.2
Comfort
7.9
Overall
8.0
Crew
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.3
Boarding
8.2
Comfort
7.9
Overall
8.0
Crew
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.3
Boarding
8.2
Comfort
7.9
Overall
8.0
Crew
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.3
Boarding
8.2
Comfort
7.9
Overall
8.0
Crew
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.3
Boarding
8.2
Comfort
7.9
Overall
8.0
Crew
8.5
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Dublin to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Dublin?
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Alternative routes for Dublin to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Dublin to Dulles Intl
Discover the top 3 airlines that operate flights from Dublin to Dulles Intl. 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 March 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$256 | Average$460 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$419 | Average$656 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$612 | Average$748 | FlexibilityNo cancel fee | On-time69% |