Cheap flights from Washington, D.C. Dulles Intl Airport to San Juan from $78
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. Dulles Intl Airport to San Juan departing on 8/17. 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. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport
Our best Frontier deals on Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport
Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport flight tickets
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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport
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
What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?
If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of June, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $416.
What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?
On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. Dulles Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $387. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $478.
What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?
The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is at noon when flights can be purchased for as low as $238. Flights in the afternoon are often more expensive with an average ticket price of $453.
What is the cheapest Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl flight route?
Fly from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl for the best Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl flight prices
How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?
You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. Dulles Intl Airport when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $466 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. Dulles Intl Airport for as low as $352 on momondo.
What cabin class options are available on Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl flights?
There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl 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. Dulles Intl to San Juan Luis Munoz Marin Intl?
United Airlines, Frontier, and Delta are the most popular carriers operating from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl
What airlines fly to San Juan Luis Munoz Marin Intl Airport?
United Airlines, Frontier and Delta are the top three most popular airlines that fly to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 74% of people opting to fly with this airline when traveling to San Juan Luis Munoz Marin Intl Airport. Keep in mind that there are 6 different airlines that fly to San Juan Luis Munoz Marin Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport on average per day?
As of June 2025, 2 flights take off from Washington, D.C. Dulles Intl Airport and land in San Juan Luis Munoz Marin Intl Airport each day. The most common flight departure time for this route is 8:00AM, with 66% of daily flights taking off at noon.
How many flights depart from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport on average per week?
As of June 2025, there are 16 flights per week flying from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.
When to book flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport
Cheap Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport (IAD to SJU) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport
How far is Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl by plane?
San Juan Luis Munoz Marin Intl is 1573.5 mi away from Washington, D.C. Dulles Intl. A reasonable flight in good conditions will take 3h 50m.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport are updated daily.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?
There are 6 operators available for flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport as of June 2025.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport.
What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?
The required travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport is Boeing 737 MAX 8 (26.17% of total bookings). The next most popular plane models are Airbus A320neo (21.65%), Airbus A321neo (20.13%), and Airbus A321-100/200 (12.55%).
What is the most popular airline from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport is United Airlines (71% of total bookings). The next most popular airlines are Frontier (16%), Delta (7%), and American Airlines (2%).
Best airlines flying from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport
Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $110 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $123 | Free Cancellation | Rating 6.3 8,052 reviews | |||
| PriceFrom $203 | Free Cancellation | Rating 7.3 2,925 reviews | |||
| PriceFrom $224 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $238 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $296 | Free Cancellation | Rating 7.4 8,790 reviews |
United Airlines Flights From Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport
United Airlines flies from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport around 7 times per week, with 8,790 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport in the last 72 hours was $296 (round-trip), much lower than the average airfare cost of $511 for United Airlines flights on this route.
Frontier Flights From Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport
The best Frontier deal for Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport flight tickets found on momondo in the last 72 hours was $110, round-trip. It should be noted that an average Frontier flight deal for this route in this time was higher, at $235 round-trip. Frontier operates 2 flights out of Washington, D.C. Dulles Intl Airport into San Juan Luis Munoz Marin Intl Airport in an average week, so prices vary by time and availability. 3,295 Frontier reviews by users on momondo have scored the airline at 5.9/10.
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Why should I use momondo to find a flight deal from Washington, D.C. to San Juan?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to San Juan. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Washington, D.C. to San Juan with flexible booking policies on momondo?
Yes. All flights to San Juan from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Washington, D.C. to San Juan?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight 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?
If you are not ready to book a flight from Washington, D.C. to San Juan now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Juan and let you know when they change.