$139 Cheap flights from Washington Dulles Intl. to Ramon Villeda Morales Intl. (IAD to SAP)

Make sure you check out the Covid-19 Travel Advisor to see if there are any current travel advice reports or quarantine requirements in effect in La Mesa Intl. Airport when jet-setting from IAD.

You’ll have trouble finding a flight straight from IAD to Ramon Villeda Morales Intl. Airport (SAP), but we have the next best thing. United Airlines, Delta and Avianca operate flights with just one stopover.

For more info about changing your flight to SAP, please visit our Customer Service Portal.

The flight between Washington Dulles Intl. Airport (IAD) and La Mesa Intl. Airport is approximately 6 hours and 28 minutes. Make your trip comfortable by saving a movie or a few TV shows on your laptop or phone and enjoying them with your seat reclined.

There’s a flight distance of 1,750 mi between IAD and SAP. This is classified as a medium-haul flight. There’ll be plenty of time to watch the in-flight entertainment and fit in some shut-eye if you want to look fresh on landing.

Unfortunately, there are no airlines currently offering direct flights between Dulles Intl. Airport and La Mesa Intl. Airport. In the interest of saving time, book well in advance to find the best price and route.

From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with United Airlines, American Airlines or Spirit Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.