Cheap flights from Washington, D.C. to San Juan from $64
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 7/8. 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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1 adult
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0 bags
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Cheap round-trip flights
These are some of the best round-trip flight deals from Washington, D.C. to San Juan that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Washington, D.C. to San Juan.
Cheap last minute flights
Planning a quick getaway from Washington, D.C. to San Juan? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to San Juan, so you can enjoy a seamless trip without layovers.
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![United Airlines]()
Jun 1![United Airlines]()
Jun 4
IAD8:40 amWashington, D.C. Dulles Intl
3h 54m
SJU12:34 pmSan Juan Luis Munoz Marin Intl
SJU1:05 amSan Juan Luis Munoz Marin Intl
6h 14m
1 stop
IAD7:19 amWashington, D.C. Dulles Intl
United Airlines![United Airlines]()
May 29![United Airlines]()
Jun 3
IAD3:40 pmWashington, D.C. Dulles Intl
8h 17m
1 stop
SJU11:57 pmSan Juan Luis Munoz Marin Intl
SJU3:56 pmSan Juan Luis Munoz Marin Intl
8h 34m
1 stop
IAD12:30 amWashington, D.C. Dulles Intl
Frontier flights from Washington, D.C. to San Juan
Our best Frontier deals on Washington, D.C. to San Juan flight tickets
Frontier![Frontier]()
May 25![Frontier]()
May 29
IAD12:10 pmWashington, D.C. Dulles Intl
3h 52m
SJU4:02 pmSan Juan Luis Munoz Marin Intl
SJU7:20 amSan Juan Luis Munoz Marin Intl
3h 55m
IAD11:15 amWashington, D.C. Dulles Intl
Frontier![Frontier]()
May 27![Frontier]()
Jun 1
IAD4:55 pmWashington, D.C. Dulles Intl
3h 52m
SJU8:47 pmSan Juan Luis Munoz Marin Intl
SJU7:40 amSan Juan Luis Munoz Marin Intl
3h 53m
IAD11:33 amWashington, D.C. Dulles Intl
See travel insights to San Juan from
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
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Other information
What is the typical price of a round-trip flight between Washington, D.C. and San Juan?
What is the cheapest month to fly to San Juan?
If you’re not able to fly to San Juan in March, then September is your next best option. Flight prices from Washington, D.C. to San Juan during September average around $305.
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 $399. The most expensive day to fly to San Juan is Friday, with ticket prices averaging around $473.
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 $455 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 Baltimore/Washington 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 16 weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $486 when searching 16 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 $390 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.
What is the cheapest airline that flies from Washington, D.C. to San Juan?
Frontier, Spirit Airlines, and Delta are the most popular carriers operating from Washington, D.C. to San Juan
What airlines fly to San Juan?
Spirit Airlines, JetBlue and United Airlines are the top three most popular airlines that fly to San Juan from Washington, D.C. according to our data. Spirit Airlines 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 many flights depart from Washington, D.C. to San Juan on average per day?
As of April 2025, 4 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 64% of daily flights taking off at noon.
How many flights depart from Washington, D.C. to San Juan on average per week?
As of April 2025, 32 flights take off from Washington, D.C. and land in San Juan each week. The most common flight departure day for this route is Mon, with 19% of weekly flights taking off on this day.
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
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 42m 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 April 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 | ||
|---|---|---|---|---|---|
| PriceFrom $68 | Free Cancellation | Rating 5.9 3,284 reviews | |||
| PriceFrom $96 | Free Cancellation | Rating 6.3 7,956 reviews | |||
| PriceFrom $167 | Free Cancellation | Rating 7.3 2,922 reviews | |||
| PriceFrom $199 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $224 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $238 | Free Cancellation | Rating 8.0 7,929 reviews | |||
| PriceFrom $322 | Free Cancellation | Rating 8.0 4,295 reviews |
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.