What airlines fly to San Juan?

Frontier, Spirit Airlines and JetBlue are the top three most popular airlines that fly to San Juan from Washington, D.C. according to our data. Frontier is the first choice among our users, with 31% of people opting to fly with this airline when traveling to San Juan. Keep in mind that there are 7 different airlines that fly to San Juan on a routine basis, so you have a few additional options to choose from.

How often are flights from Washington, D.C. to San Juan delayed?

Historically, on average around 18% of flights between Washington, D.C. and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 122 minutes.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

How many flights depart from Washington, D.C. to San Juan on average per day?

As of December 2025, 10 flights take off from Washington, D.C. and land in San Juan each day. The most common flight departure time for this route is 8:00AM, with 51% of daily flights taking off at noon.

What is the cheapest airline that flies from Washington, D.C. to San Juan?

United Airlines, Spirit Airlines, and JetBlue are the most popular carriers operating from Washington, D.C. to San Juan

What is the most punctual flight time for Washington, D.C. to San Juan flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on Washington, D.C. to San Juan flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

How many flights depart from Washington, D.C. to San Juan on average per week?

As of December 2025, 74 flights take off from Washington, D.C. and land in San Juan each week. The most common flight departure day for this route is Fri, with 16% of weekly flights taking off on this day.

How long does it take to fly to San Juan?

If you’re flying from a popular airport in Washington, D.C., such as Baltimore or Washington, D.C., and flying into San Juan, then you can expect flight times to average 3h 39m and 3h 42m, respectively.

When did momondo last update prices for flights from Washington, D.C. to San Juan?

Prices for flights from Washington, D.C. to San Juan are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. to San Juan?

The number of operators available for flights from Washington, D.C. to San Juan is 7 as of December 2025.

How old do you have to be to fly from Washington, D.C. to San Juan?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to San Juan.

What documentation or ID do you need to fly to San Juan?

The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$103 Cheap Flights from Washington, D.C. to San Juan in 2025/26

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Find the cheapest flights from Washington, D.C. to San Juan

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One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:26 pm - 1:20 am

IAD

SJU

3h 54mnonstop

3:11 pm - 6:24 pm

SJU

IAD

4h 13mnonstop

$179Frontier

Mon, Jan 5 - Fri, Jan 9

10:03 am - 5:08 pm

IAD

SJU

6h 05m1 stop

7:34 pm - 8:04 am

SJU

IAD

13h 30m1 stop

$180Frontier

Sat, Jan 10 - Wed, Jan 14

8:20 pm - 1:05 am

IAD

SJU

3h 45mnonstop

5:25 pm - 9:25 am

SJU

IAD

17h 00m1 stop

$181Frontier

Sat, Feb 14 - Wed, Feb 18

7:19 pm - 12:13 am

IAD

SJU

3h 54mnonstop

6:48 pm - 8:38 am

SJU

IAD

14h 50m2 stops

$182Multiple Airlines

Fri, Jan 9 - Fri, Jan 16

8:20 pm - 1:05 am

IAD

SJU

3h 45mnonstop

5:25 pm - 9:25 am

SJU

IAD

17h 00m1 stop

$183Frontier

Fri, Feb 20 - Wed, Feb 25

7:19 pm - 12:13 am

IAD

SJU

3h 54mnonstop

4:35 pm - 2:15 pm

SJU

IAD

22h 40m2 stops

$184Frontier

Sun, Jan 11 - Wed, Jan 14

8:15 am - 1:08 pm

DCA

SJU

3h 53mnonstop

6:35 pm - 9:36 pm

SJU

DCA

4h 01mnonstop

$195JetBlue

Sat, Jan 31 - Sat, Feb 7

8:15 am - 1:08 pm

DCA

SJU

3h 53mnonstop

6:30 pm - 9:32 pm

SJU

DCA

4h 02mnonstop

$198JetBlue

Mon, Jan 19 - Thu, Jan 22

8:15 am - 1:08 pm

DCA

SJU

3h 53mnonstop

6:35 pm - 9:36 pm

SJU

DCA

4h 01mnonstop

$201JetBlue

Fri, Jan 9 - Sat, Jan 17

5:20 pm - 1:22 am

DCA

SJU

7h 02m1 stop

6:35 pm - 9:36 pm

SJU

DCA

4h 01mnonstop

$205JetBlue

Fri, Jan 9 - Sat, Jan 17

Frontier flights from Washington, D.C. to San Juan

Our best Frontier deals on Washington, D.C. to San Juan flight tickets

Frontier

Jan 5

IAD8:26 pmWashington, D.C. Dulles Intl

3h 54m

SJU1:20 amSan Juan Luis Munoz Marin Intl

Jan 9

SJU3:11 pmSan Juan Luis Munoz Marin Intl

4h 13m

IAD6:24 pmWashington, D.C. Dulles Intl

$179

Find similar

Frontier

Jan 10

IAD6:00 amWashington, D.C. Dulles Intl

9h 21m

1 stop

SJU4:21 pmSan Juan Luis Munoz Marin Intl

Jan 17

SJU7:34 pmSan Juan Luis Munoz Marin Intl

13h 30m

1 stop

IAD8:04 amWashington, D.C. Dulles Intl

$180

Find similar

Frontier

Jan 8

IAD7:19 pmWashington, D.C. Dulles Intl

3h 54m

SJU12:13 amSan Juan Luis Munoz Marin Intl

Jan 13

SJU3:47 pmSan Juan Luis Munoz Marin Intl

20h 56m

2 stops

IAD11:43 amWashington, D.C. Dulles Intl

$181

Find similar

United Airlines flights from Washington, D.C. to San Juan

Our best United Airlines deals on Washington, D.C. to San Juan flight tickets

United Airlines

Jan 4

IAD5:32 pmWashington, D.C. Dulles Intl

3h 50m

SJU10:22 pmSan Juan Luis Munoz Marin Intl

Jan 13

SJU5:50 pmSan Juan Luis Munoz Marin Intl

4h 05m

IAD8:55 pmWashington, D.C. Dulles Intl

$242

Find similar

United Airlines

Jan 12

BWI10:05 amBaltimore/Washington

13h 31m

2 stops

SJU12:36 amSan Juan Luis Munoz Marin Intl

Jan 15

SJU7:45 amSan Juan Luis Munoz Marin Intl

9h 21m

1 stop

BWI4:06 pmBaltimore/Washington

$251

Find similar

United Airlines

Jan 9

DCA5:00 pmWashington, D.C. Reagan-National

12h 11m

2 stops

SJU6:11 amSan Juan Luis Munoz Marin Intl

Jan 13

SJU2:05 amSan Juan Luis Munoz Marin Intl

7h 27m

1 stop

DCA8:32 amWashington, D.C. Reagan-National

$260

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 1/5

8:26 pm-1:20 am

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Fri 1/9

3:11 pm-6:24 pm

Nonstop4h 13m

$179

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sat 1/10

10:03 am-5:08 pm

1 stop6h 05m

San Juan Luis Munoz Marin Intl

Wed 1/14

7:34 pm-8:04 am

1 stop13h 30m

$180

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sat 2/14

8:20 pm-1:05 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Wed 2/18

5:25 pm-9:25 am

1 stop17h 00m

$181

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Fri 1/9

7:19 pm-12:13 am

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Fri 1/16

6:48 pm-8:38 am

2 stops14h 50m

$182

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Fri 2/20

8:20 pm-1:05 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Wed 2/25

5:25 pm-9:25 am

1 stop17h 00m

$183

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 1/11

7:19 pm-12:13 am

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Wed 1/14

4:35 pm-2:15 pm

2 stops22h 40m

$184

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sat 1/31

8:15 am-1:08 pm

Nonstop3h 53m

San Juan Luis Munoz Marin Intl

Sat 2/7

6:35 pm-9:36 pm

Nonstop4h 01m

$195

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 1/19

8:15 am-1:08 pm

Nonstop3h 53m

San Juan Luis Munoz Marin Intl

Thu 1/22

6:30 pm-9:32 pm

Nonstop4h 02m

$198

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Fri 1/9

8:15 am-1:08 pm

Nonstop3h 53m

San Juan Luis Munoz Marin Intl

Sat 1/17

6:35 pm-9:36 pm

Nonstop4h 01m

$201

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Fri 1/9

5:20 pm-1:22 am

1 stop7h 02m

San Juan Luis Munoz Marin Intl

Sat 1/17

6:35 pm-9:36 pm

Nonstop4h 01m

$205

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in July, then March is your next best option. Flight prices from Washington, D.C. to San Juan during March average around $294.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Washington, D.C. to San Juan is on a Tuesday when prices can be found for as low as $365. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $458.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is at noon when flights can be purchased for as low as $238. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $427 on average. Flights to San Juan from Washington, D.C. in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Washington, D.C. to San Juan flight route?

Fly from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl for the best Washington, D.C. - San Juan flight prices

How far in advance should I book a flight to San Juan?

You are more likely to see cheaper flights to San Juan from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $405 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Washington, D.C. for as low as $326 on momondo.

What cabin class options are available on Washington, D.C. to San Juan flights?

There are 4 cabin classes available to choose from on Washington, D.C. to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Washington, D.C. to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to San Juan

Fastest flight time	3h 39m
Direct flights	Every day
Airports in San Juan	2 airports

The fastest flight from Washington, D.C. to San Juan takes 3h 39m

Direct flights go from Washington, D.C. to San Juan every day.

There are 2 airports in San Juan. From Washington, D.C. there are direct flights to San Juan Luis Munoz Marin Intl (SJU).

Search flight deals

How far is Washington, D.C. to San Juan by plane?
A flight from Washington, D.C. to San Juan will travel around 1555.8 mi. 3h 39m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to San Juan?
Prices for flights from Washington, D.C. to San Juan are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to San Juan?
The number of operators available for flights from Washington, D.C. to San Juan is 7 as of December 2025.
How old do you have to be to fly from Washington, D.C. to San Juan?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to San Juan.
What documentation or ID do you need to fly to San Juan?
The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Washington, D.C. to San Juan

Compare and see reviews for airlines that fly from Washington, D.C. to San Juan with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $97	Free Cancellation	Rating 5.8 3,071 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $103	Free Cancellation	Rating 6.3 8,210 reviews	Search Spirit Airlines flights
Delta	PriceFrom $142	Free Cancellation	Rating 7.9 8,019 reviews	Search Delta flights
JetBlue	PriceFrom $167	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
United Airlines	PriceFrom $214	Free Cancellation	Rating 7.4 9,114 reviews	Search United Airlines flights
American Airlines	PriceFrom $219	Free Cancellation	Rating 7.2 11,066 reviews	Search American Airlines flights
Southwest	PriceFrom $220	Free Cancellation	Rating 8.0 4,256 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to San Juan?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to San Juan. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to San Juan with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to San Juan flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to San Juan?

Once you have performed a search for Washington, D.C. to San Juan flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to San Juan right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Fly into one of these airports located in San Juan

San Juan Isla Grande Airport

San Juan Luis Munoz Marin Intl Airport

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Cheap flights from Washington, D.C. to San Juan from $103

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to San Juan departing on 1/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from Washington, D.C. to San Juan

Our best Frontier deals on Washington, D.C. to San Juan flight tickets

United Airlines flights from Washington, D.C. to San Juan

Our best United Airlines deals on Washington, D.C. to San Juan flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to San Juan that are best for you.

See travel insights to San Juan from

How to get the cheapest flight ticket from Washington, D.C. to San Juan

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in July, then March is your next best option. Flight prices from Washington, D.C. to San Juan during March average around $294.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Washington, D.C. to San Juan is on a Tuesday when prices can be found for as low as $365. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $458.

What is the cheapest time of day to depart on your flight to San Juan?

What is the cheapest Washington, D.C. to San Juan flight route?

Fly from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl for the best Washington, D.C. - San Juan flight prices

How far in advance should I book a flight to San Juan?

What cabin class options are available on Washington, D.C. to San Juan flights?

There are 4 cabin classes available to choose from on Washington, D.C. to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Washington, D.C. to San Juan?

United Airlines, Spirit Airlines, and JetBlue are the most popular carriers operating from Washington, D.C. to San Juan

What airlines fly to San Juan?

How often are flights from Washington, D.C. to San Juan delayed?

Historically, on average around 18% of flights between Washington, D.C. and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 122 minutes.

What is the most punctual flight time for Washington, D.C. to San Juan flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Washington, D.C. to San Juan flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

How many flights depart from Washington, D.C. to San Juan on average per day?

As of December 2025, 10 flights take off from Washington, D.C. and land in San Juan each day. The most common flight departure time for this route is 8:00AM, with 51% of daily flights taking off at noon.

How many flights depart from Washington, D.C. to San Juan on average per week?

As of December 2025, 74 flights take off from Washington, D.C. and land in San Juan each week. The most common flight departure day for this route is Fri, with 16% of weekly flights taking off on this day.

How long does it take to fly to San Juan?

If you’re flying from a popular airport in Washington, D.C., such as Baltimore or Washington, D.C., and flying into San Juan, then you can expect flight times to average 3h 39m and 3h 42m, respectively.

Cheap Washington, D.C. to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to San Juan

Fastest flight time

Direct flights

Airports in San Juan

How far is Washington, D.C. to San Juan by plane?

When did momondo last update prices for flights from Washington, D.C. to San Juan?

How many operators does momondo search for flights from Washington, D.C. to San Juan?

How old do you have to be to fly from Washington, D.C. to San Juan?

What documentation or ID do you need to fly to San Juan?

Best airlines flying from Washington, D.C. to San Juan

Compare and see reviews for airlines that fly from Washington, D.C. to San Juan with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to San Juan?

Can I find flights from Washington, D.C. to San Juan with flexible booking policies on momondo?

How can momondo help me find flights from Washington, D.C. to San Juan?

I’m not ready to book a flight from Washington, D.C. to San Juan right now. Can momondo alert me if prices change?

An easier way to manage your San Juan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan