Find cheap airlines flights from Dublin to Washington D.C.

You can choose from 1 airlines that fly from Dublin to Washington D.C., including Aer Lingus, Aer Lingus has lowest fares on this route.
Aer Lingus logo Aer Lingus
Airlines are determined based on actual purchased flight tickets from Dublin to Washington D.C. according to previous 12 months data from Trip.com.

Book direct flights from Dublin to Washington D.C.: One way flights from $665, round trip flights from $606. Find flight deals for the next 3 months below.

Displayed flight fares from Dublin to Washington D.C. are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Dublin to Washington D.C.

The distance between Dublin and Washington D.C. is approximately 5,441.16 km. It takes around 8 hours 7 minutes on average to fly from Dublin to Washington D.C.. Based on Trip.com's data travel demand peaks in July. The off-season for travel is September.

Cheapest one-way flight price$287
Cheapest round-trip ticket price$531
Off-season for travelSeptember
Peak season for travelJuly
Flight distance5,441.16 km
Average flight time8 hours 7 minutes
Popular airlineAer Lingus
Flight statistics for the Dublin–Washington D.C. route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Dublin to Washington D.C.

What is the cheapest month for round-trip flights from Dublin to Washington D.C.?

Average price of round-trip flights from Dublin to Washington D.C. purchased by Trip.com users by month over the past 12 months

According to historical data from Trip.com, the lowest prices for flights from Dublin to Washington D.C. are found during April, with an average price of $491. Conversely, the highest prices are found during January, with an average price of up to $1,313.

$1,313
$902
$491
$80
    Cheapest
  • $564
    May
  • $581
    Jun
  • $830
    Jul
  • $911
    Aug
  • $566
    Sep
  • $534
    Oct
  • $622
    Nov
  • $656
    Dec
  • $1,313
    Jan
  • $745
    Feb
  • $1,289
    Mar
  • $491
    Apr

When is the cheapest day to fly from Dublin to Washington D.C. during Juneteenth National Independence Day?

Data is based on the lowest one-way price from Dublin to Washington D.C. during Juneteenth National Independence Day on Trip.com in the past 3 days.

Juneteenth National Independence Day is scheduled for Jun 19. The cheapest flights from Dublin to Washington D.C. are available on Jun 19, with fares starting at $461.

$774
$618
$461
$305
    Cheapest
  • $515
    16
    Jun
  • $478
    17
  • $480
    18
  • $461
    19
  • $564
    20
  • $774
    21

Frequently Asked Questions

  • What are the cheapest flights from Dublin to Washington D.C. (DUB-WAS)?

    Based on Trip.com data, Jetblue Airways offers one-way fares as low as $287 on Cheapest nonstop routes (e.g. DUB to DCA on Tue, Jun 16), while Jetblue Airways offers Cheapest nonstop round-trips from $531 departing on Fri, Jun 19 and returning on Sun, Jun 21.
  • At the moment, you can catch a nonstop flight from Dublin to Washington D.C. with the following airlines, including: Aer Lingus Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 8 hours 7 minutes to fly from Dublin (DUB) to Washington D.C. (WAS).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Dublin to Washington D.C. is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 28 flight per week flying from Dublin to Washington D.C.. You can check the weekly schedule for popular airlines on this route below: Aer Lingus: S/M/T/W/T/F/S -- EI119 (17:22) Aer Lingus: S/M/T/W/T/F/S -- EI117 (13:15)
  • To find best deals on flights from Dublin to Washington D.C., you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Jun 16, with one-way flights priced at just $287.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Aer Lingus.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Washington D.C. travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Dublin to Washington D.C. is September, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Dublin to Washington D.C. on June 24, 2026 with WestJet, with prices starting at $289.
  • You can land at any one of the following hubs in Washington D.C., with Dublin Airport to Dulles International Airport (DUB-IAD) is by far the most common option on this route: Dulles International Airport (IAD) Ronald Reagan Washington National Airport (DCA).
  • The time difference between Washington D.C. and Dublin is 5h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.