Cheap flights from Washington Dulles Intl (IAD) to San Juan (SJU)

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How to find the cheapest flight from
Washington Dulles Intl (IAD) to San Juan (SJU)

All the information you need to plan the best IAD to SJU flight in 2021: compare Washington Dulles Intl to San Juan flight prices with the expected peak season, weather and rainfall in San Juan.
IAD - PR1
Price
$298 - $603
PR1
Temperature
82.4 - 89.6 °F
PR1
Rainfall
1.3 - 5.8 inches

Popular in

December

High demand for flights, 39% potential price rise

Cheapest in

August

Best time to find cheap flights, 18% potential price drop

Round-trip from

$298

From Washington Dulles Intl to San Juan

One-way from

$160

One-way flight from Washington Dulles Intl to San Juan

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from Washington Dulles Intl to San Juan?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 19 days in advance, which can save you up to 7% on flights from Washington Dulles Intl to San Juan compared to booking the week you need them. Waiting 19 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $262. For sooner than that we have options available in the next 3 days from $281.

What is the cheapest month to fly from Washington Dulles Intl to San Juan?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to San Juan. Flights to San Juan from Washington Dulles Intl in August are about $313 on average during August, but can be found for as low as $121.

Cheap flights from Washington Dulles Intl to San Juan in May, June 2021

The best prices found for IAD to SJU flights for May, June
11 May - 17 May
$200pp
IAD
Washington Dulles Intl
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
   
2 STOPS
IAD
Washington Dulles Intl
11 May - 18 May
$210pp
IAD
Washington Dulles Intl
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
   
2 STOPS
IAD
Washington Dulles Intl
23 May - 24 May
$234pp
IAD
Washington Dulles Intl
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
   
2 STOPS
IAD
Washington Dulles Intl

Washington Dulles Intl to San Juan 2021 flight deals

Cheap flights to San Juan from Washington Dulles Intl found for this year
11 May - 17 May
$200pp
IAD
Washington Dulles Intl
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
   
2 STOPS
IAD
Washington Dulles Intl
11 May - 18 May
$210pp
IAD
Washington Dulles Intl
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
   
2 STOPS
IAD
Washington Dulles Intl
23 May - 24 May
$234pp
IAD
Washington Dulles Intl
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
   
2 STOPS
IAD
Washington Dulles Intl

Non-stop flights to San Juan from Washington Dulles Intl

Save time with Washington Dulles Intl to San Juan direct flight deals
15 Sep - 16 Sep
$319pp
IAD
Washington Dulles Intl
United Airlines
Non-Stop
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
3 Sep - 10 Sep
$325pp
IAD
Washington Dulles Intl
United Airlines
Non-Stop
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
23 May - 29 May
$345pp
IAD
Washington Dulles Intl
United Airlines
Non-Stop
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl

Last minute flights from Washington Dulles Intl to San Juan

Late deals on round-trip flights to San Juan from Washington Dulles Intl, departing today and this week
11 May - 17 May
$200pp
IAD
Washington Dulles Intl
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
   
2 STOPS
IAD
Washington Dulles Intl
11 May - 18 May
$210pp
IAD
Washington Dulles Intl
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
   
2 STOPS
IAD
Washington Dulles Intl
16 May - 19 May
$268pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
 
1 STOP
IAD
Washington Dulles Intl

One-way flights to San Juan from Washington Dulles Intl

The cheapest one-way flights from Washington Dulles Intl to San Juan
2:06 pm - 10:19 pm
Frontier
1 Stop
8h 13m
IAD - SJU
Frontier
$160
Destinia
1:07 pm - 7:52 pm
Delta
1 Stop
6h 45m
IAD - SJU
Delta
$165
Delta
6:35 am - 1:52 pm
Multiple Airlines
1 Stop
7h 17m
IAD - SJU
Multiple Airlines
$171
Gotogate

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Washington Dulles Intl</span> to <span class="emphasized">San Juan</span> flights.

Flight FAQs

From Washington Dulles Intl to San Juan

Are flight prices decreasing from Washington Dulles Intl to San Juan due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Washington Dulles Intl and San Juan for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Washington Dulles Intl to San Juan to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. Some of the new policies that have been implemented to accommodate travelers flying from Washington Dulles Intl to San Juan are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Washington Dulles Intl to San Juan have flexible cancellations due to COVID-19?

United Airlines, Delta, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Washington Dulles Intl to San Juan for under $200 on Cheapflights?

Yes, there are multiple flights from Washington Dulles Intl to San Juan for under $200. The cheapest flight booked recently is on Frontier for just $200, but on average you can expect to pay $276.

Are there nonstop flights from Washington Dulles Intl to San Juan for under $400 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington Dulles Intl to San Juan under $400. A good price for a nonstop flight from Washington Dulles Intl to San Juan is less than $407.

Are there last-minute flights available from Washington Dulles Intl to San Juan for under $200?

There are currently 20+ open flights from Washington Dulles Intl to San Juan within the next 7 days for less than $200.

What days are nonstop flights available from Washington Dulles Intl to San Juan?

Nonstop flights are available for this route on the following days: Monday, Tuesday.

How many flights depart from Washington Dulles Intl to San Juan on average per day?

4 flight departures from Washington Dulles Intl to San Juan per day on average.
Afternoon (Noon - 6pm) - 100% of flight departures

Is Washington Dulles Intl weather warmer or cooler than San Juan?

You can imagine temperatures to be in the 90 °F range in June. The weather in San Juan is generally hotter than Washington Dulles Intl's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from Washington Dulles Intl to San Juan?

United Airlines, American Airlines, and Frontier can get you from Washington Dulles Intl to San Juan in just under 3h 48m. Your travel time can differ by up to 4h 25m. There are 1583 mi between Washington Dulles Intl and San Juan. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Washington Dulles Intl to San Juan round-trip?

Cheapflights users have booked flights from Washington Dulles Intl to San Juan round-trip from $200. Another airline that can offer you cheap pricing is United Airlines. These flights start at 45% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Washington Dulles Intl to San Juan one-way?

The cheapest airlines for a one-way flight from Washington Dulles Intl to San Juan are Frontier ($113), United Airlines ($145), and Delta ($165).

Alternative routes for Washington Dulles Intl to San Juan

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Juan

Things to know before you go - useful duration and weather info for your trip from Washington Dulles Intl to San Juan.
Today's exchange rate
$1 = $1.00
Average temperature for May in San Juan
87.8 °F
Avg rainfall for May in San Juan
3.6 ″

Airports servicing Washington

Airports servicing San Juan

San Juan Isla Grande (SIG)

Top 6 airlines flying from Washington Dulles Intl to San Juan

The chart below displays the airlines Cheapflights users traveling from Washington Dulles Intl to San Juan choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$154 $279 No cancel fee 62%
Spirit Airlines
$118 $308 No cancel fee 65%
Delta
$138 $350 No cancel fee N/A
JetBlue
$194 $434 No cancel fee 62%
American Airlines
$160 $489 No cancel fee 71%
United Airlines
$173 $494 No cancel fee 69%

Hourly flight availability from Washington Dulles Intl to San Juan

See what time of day planes typically take off from Washington Dulles Intl towards San Juan.
Morning 6 AM to noon 55% of IAD to SJU departures
Afternoon Noon to 6 PM 44% of IAD to SJU departures
Early morning Midnight to 6 AM 1% of IAD to SJU departures
Evening 6 PM to midnight 0% of IAD to SJU departures
Midnight
6 AM
Noon
6 PM
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