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340 € Cheap Flights from Washington Dulles to Santiago

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      Travellers and cabin class, 1 Adult, Economy

      Compare Washington Dulles to Santiago flight deals

      Find the cheapest month or even day of the year to fly to Santiago

      Book the best Santiago fare with no extra fees

      Flight deals from Washington Dulles to Santiago

      Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Santiago Airport? If you want to travel next month, return fares start from 342 €. Find the lowest prices on one-way and return tickets right here.
      Santiago.340 € per passenger.Departing Sun, 8 Nov, returning Fri, 13 Nov.Return flight with United.Outbound indirect flight with United, departs from Washington Dulles on Sun, 8 Nov, arriving in Santiago.Inbound indirect flight with United, departs from Santiago on Fri, 13 Nov, arriving in Washington Dulles.Price includes taxes and charges.From 340 €, select.
      Santiago.341 € per passenger.Departing Tue, 1 Dec, returning Fri, 4 Dec.Return flight with United.Outbound indirect flight with United, departs from Washington Dulles on Tue, 1 Dec, arriving in Santiago.Inbound indirect flight with United, departs from Santiago on Fri, 4 Dec, arriving in Washington Dulles.Price includes taxes and charges.From 341 €, select.
      Santiago.342 € per passenger.Departing Fri, 2 Oct, returning Thu, 8 Oct.Return flight with United.Outbound indirect flight with United, departs from Washington Dulles on Fri, 2 Oct, arriving in Santiago.Inbound indirect flight with United, departs from Santiago on Thu, 8 Oct, arriving in Washington Dulles.Price includes taxes and charges.From 342 €, select.
      Santiago.343 € per passenger.Departing Fri, 30 Oct, returning Sat, 14 Nov.Return flight with United.Outbound indirect flight with United, departs from Washington Dulles on Fri, 30 Oct, arriving in Santiago.Inbound indirect flight with United, departs from Santiago on Sat, 14 Nov, arriving in Washington Dulles.Price includes taxes and charges.From 343 €, select.
      Santiago.359 € per passenger.Departing Wed, 27 Jan, returning Mon, 1 Feb.Return flight with Copa.Outbound indirect flight with Copa, departs from Washington Dulles on Wed, 27 Jan, arriving in Santiago.Inbound indirect flight with Copa, departs from Santiago on Mon, 1 Feb, arriving in Washington Dulles.Price includes taxes and charges.From 359 €, select.
      Santiago.359 € per passenger.Departing Sun, 15 Nov, returning Sat, 5 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Sun, 15 Nov, arriving in Santiago.Inbound indirect flight with Delta, departs from Santiago on Sat, 5 Dec, arriving in Washington Dulles.Price includes taxes and charges.From 359 €, select.
      Santiago.456 € per passenger.Departing Fri, 25 Sep, returning Tue, 29 Sep.Return flight with United.Outbound indirect flight with United, departs from Washington Dulles on Fri, 25 Sep, arriving in Santiago.Inbound indirect flight with United, departs from Santiago on Tue, 29 Sep, arriving in Washington Dulles.Price includes taxes and charges.From 456 €, select.
      Santiago.461 € per passenger.Departing Mon, 8 Mar, returning Mon, 22 Mar.Return flight with Copa.Outbound indirect flight with Copa, departs from Washington Dulles on Mon, 8 Mar, arriving in Santiago.Inbound indirect flight with Copa, departs from Santiago on Mon, 22 Mar, arriving in Washington Dulles.Price includes taxes and charges.From 461 €, select.
      Santiago.466 € per passenger.Departing Sat, 27 Mar, returning Sat, 3 Apr.Return flight with Copa.Outbound indirect flight with Copa, departs from Washington Dulles on Sat, 27 Mar, arriving in Santiago.Inbound indirect flight with Copa, departs from Santiago on Sat, 3 Apr, arriving in Washington Dulles.Price includes taxes and charges.From 466 €, select.
      Santiago.648 € per passenger.Departing Sat, 2 Jan, returning Sat, 9 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Sat, 2 Jan, arriving in Santiago.Inbound indirect flight with Delta, departs from Santiago on Sat, 9 Jan, arriving in Washington Dulles.Price includes taxes and charges.From 648 €, select.
      Santiago.931 € per passenger.Departing Wed, 9 Dec, returning Sat, 2 Jan.Return flight with Frontier Airlines and jetBlue.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Wed, 9 Dec, arriving in Santiago.Inbound indirect flight with jetBlue, departs from Santiago on Sat, 2 Jan, arriving in Washington Dulles.Price includes taxes and charges.From 931 €, select.

      Find the cheapest month to fly from Washington Dulles to Santiago

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Santiago flights are currently cheapest in November.
      Sep
      from 456 €
      Oct
      from 342 €
      Nov
      from 340 €
      Dec
      from 341 €
      Jan
      from 648 €
      Feb
      Find prices
      Mar
      from 461 €
      Apr
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      May
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      Jun
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      Jul
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      Aug
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      Washington Dulles to Santiago: Alternative routes

      Compare routes from Washington Dulles to Santiago below. You may find an airport to fly into that's cheaper, faster, or easier than Santiago.

      Santiago

      2km from central Santiago
      ClosestCheapest
      from 340 €
      Search flights

      Puerto Plata

      36km from central Santiago
      from 437 €
      Search flights

      Washington D.C. to Santiago: Flight information

      The things to know before you go.
      Cheapest flight found340 €
      Cheapest month to flyNovember

      Finding cheap flights from Washington Dulles to Santiago: Frequently asked questions

      The best price we found for a return flight from Washington Dulles to Santiago is 340 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Washington Dulles to Santiago. But we found flights with one or more stops from 340 €.
      As of September 2026, there are no flights flying from Washington Dulles to Santiago.
      The cheapest month to fly from Washington Dulles to Santiago is usually November.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Santiago Airport on Sunday, 8 November 2026.
      No airlines currently offer direct flights between Washington Dulles Airport and Santiago Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Santiago but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Santiago is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, United offers the cheapest flight tickets to Santiago.

      Flying from Washington Dulles Airport (IAD) to Santiago Airport (STI): what you need to know

      • The timezone in Santiago is UTC-4, which is one hour ahead of Washington DC.

      • To ensure you get on your IAD to STI flight, allow plenty of time to navigate the airport and find your gate. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.

      • During popular months like July, it's best to get to the airport earlier than normal. Plan to arrive two hours before domestic departures and four hours ahead of international flights whenever you're travelling during a high season in general.

      • We make it a piece of cake to book a flight with a stopover. To see your options for tickets from Washington Dulles Airport to Santiago Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to tour your chosen city. Some great stopovers between IAD and STI include:

        • New York John F. Kennedy Airport

        • New York Newark Airport

        • Fort Lauderdale International Airport

      How to find the cheapest flights from Washington Dulles Airport (IAD) to Santiago Airport (STI)

      • 156 € is currently the best price for a one-way Washington Dulles Airport to Santiago Airport flight. Return flights start at 340 €. These prices can change depending on availability and demand.

      • It's often best to book early if you want to find cheap tickets from IAD to STI. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.

      • The 'Whole month' search tool shows you the cheapest flights from Washington Dulles Airport to Santiago Airport across every month. It's a good way to find a bargain if your plans are flexible.

      • Stay on top of deals for cheap flights from IAD to STI by setting up a Price Alert. You'll get an email or notification through the app when a new low fare is offered.

      • Select your preferred arrival and departure times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Washington Dulles Airport to Santiago Airport.

      Handy information about Washington Dulles Airport (IAD)

      • The address for IAD is 1 Saarinen Circle.

      • When it comes to the on-time performance of Washington Dulles Airport, data shows 77% of flights meet their scheduled arrival time.

      • To get to Washington Dulles Airport from central Washington DC, it takes about 45 minutes if you're going by car. Of course, this depends on traffic. It's approximately 40 kilometres from the airport to the city centre.

      • The trip when using public transport takes about 1 hour 10 minutes.

      • Get your break off to a relaxed start by staying near IAD. Whether you're catching an early flight from Washington Dulles Airport to Santiago Airport or just don't want to be rushed, these stays are perfect:

      Arriving at Santiago Airport (STI)

      • If you're getting in on a late Washington Dulles Airport to Santiago Airport flight, nothing beats the convenience of staying close to the terminal. Grab your suitcases from the carousel and then be showered and resting shortly after at one of these accommodation options near STI:

      • Get on the fast track to adventure by picking up a Santiago Airport rental car. Grab a set of wheels from America, Zezgo Rent a Car or Alamo and explore beyond Santiago's usual tourist stops.

      • Lock in the best deal by reserving your vehicle from Santiago Airport around one week ahead of your trip.

      When to fly to Santiago Airport (STI)

      • August is the most popular month for flights from Washington Dulles Airport to Santiago Airport. For smaller crowds, visit Santiago in October.

      • The warmest month in Santiago is August, with the temperature ranging between 21ºC (70ºF) and 33ºC (91ºF). Book your flights from Washington Dulles Airport to Santiago Airport in this month if you enjoy this type of weather.

      • January has average temperatures of between 16ºC (61ºF) and 29ºC (84ºF). Search for cheap tickets from IAD to STI sometime around then if you like cooler conditions.

      Explore more of the Dominican Republic

      • You've seen Santiago, now it's time to explore other parts of the Dominican Republic. Journey about 137 kilometres south-east to Santo Domingo to check off its top sights. From Catedral Primada de las Americas to Alcazar de Colon and The Cathedral of the Americas, there's plenty to keep you on the go.

      • Around 145 kilometres south-east of Santiago, Santo Domingo Este is another essential stop in the Dominican Republic. Experience this destination's highlights firsthand at Lago los tres ojos, National Aquarium and La Cueva del Eden.

      Plan the rest of your trip from Washington D.C. to Santiago

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.