Marathon to Dulles (MTH–IAD) — Airlines, Schedules & Connections

MTH Airport Page →
1,005 mi airlines 0/wk
On-time Some delays Frequent delays
Flight Schedule 0 flights Verified 3w ago
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  Flight Airline AC Dep Arr Dur OTP Sched  

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP
✧ 2-STOP Loading...
Marathon to Dulles
Connecting service available through multiple hubs.
1,005 mi 2h 28m nonstop 8 1-stop hubs

While no nonstop service exists between MTH and IAD, connecting options are available through 8 hubs.

Also explore MTH Routes IAD Routes MTH Live Flights IAD Live Flights IAD Delays
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for MTH to IAD.
1-STOP
One-Stop Connections
8
Hubs
~4h
Fastest
~10h
Longest
BNA ~4h 21m FLL ~4h 53m CLT ~4h 59m NAS ~5h 4m DAL ~5h 23m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
0
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
MTH → IAD
64%
Moderate delays possible. Allow buffer time.
Arriving
64%
Return
IAD → MTH
54%
Frequent delays expected. Consider flexible booking.
Departing
54%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. IAD delays →
Alternatives

Other ways to reach Dulles from Marathon

Nearby airports with service to Washington Dulles International Airport.
Metric MTH→IAD EYW→IAD MIA→IAD
Distance from MTH – 46 mi 88 mi
Nonstop airlines 0 2 13
Weekly flights 0 7 34
Flight time 2h 28m 2h 50m 1h 47m
Key West (EYW) to Dulles flights · Miami (MIA) to Dulles flights · Miami (OPF) to Dulles flights
Airports within 200 miles of MTH with service to Washington Dulles International Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Dulles is 0 hours the same as Marathon.
MTH: EDT · IAD: EDT

When it's 6:00 PM in Marathon, it's 6:00 PM in Dulles.
Distance & Flight Time
1,005 mi / 1,617 km
Nonstop flight time is approximately 2h 28m.
Getting from IAD

Silver Line Metro runs from Washington Dulles Airport station to Metro Center in about 65 minutes (~$7). The route bypasses I-66 and I-495 congestion entirely. Washington Flyer coach also runs to Wiehle-Reston East station ($6, 15 min) for Metro connection.Taxis and ride-shares to downtown DC cost $55–80 and take 35–55 minutes depending on traffic. Car rental facilities are on-site. Dulles is 27 miles west of the Capitol; it is farther than either DCA or BWI from central DC.

Dulles Climate

Humid continental climate. Summers are hot and muggy (30–36°C) with frequent afternoon thunderstorms that cause delays June through August. Winters bring cold temperatures (−3 to 5°C) with snow and ice. The Virginia suburbs accumulate more snow than downtown DC, and ice storms are the primary disruption risk.

Dulles sits at higher elevation in Virginia's piedmont and sees more winter precipitation than DCA. Spring and fall are variable. Snowfall is possible into April. Thunderstorms begin from April through May.

Check current weather forecasts before travel.
Facts

MTH–IAD Quick Facts

Key statistics for the Marathon to Dulles route.
Route details
Distance1,005 mi / 1,617 km
Flight time2h 28m
Time difference0 hours
Airlines (nonstop)0
1-stop connections8 hubs
Origin: MTH
Full nameFlorida Keys Marathon International Airport
IATA / ICAOMTH / KMTH
TimezoneAmerica/Kentucky/Monticello
Elevation5 ft / 2 m
Destination: IAD
Full nameWashington Dulles International Airport
IATA / ICAOIAD / KIAD
TimezoneAmerica/New_York
Passengers/yr26.0M
Elevation312 ft / 95 m
FAQ

Frequently Asked Questions

Common questions about MTH to IAD flights.
Nonstop flights from Florida Keys Marathon International Airport to Washington Dulles International Airport take approximately 2h 28m. The route covers 1,005 miles.
Yes, 1-stop connections are available through BNA, FLL, CLT, NAS, DAL, DTW, AUS and LAS. These options provide additional schedule flexibility.
Yes, return flights from IAD to MTH are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include EYW, MIA and OPF. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from MTH to IAD

Florida Keys Marathon International Airport (MTH) and Washington Dulles International Airport (IAD) are connected through multiple connecting hub airports.

MTH to IAD Flight Duration and Schedule

Nonstop flight time from MTH to IAD ranges from 2 hours 28 minutes. The route covers a distance of 1,005 miles (1,617 km).

Connecting Options and Alternatives

8 one-stop connections are available, with the fastest taking approximately 4 hours via BNA. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Key West (EYW), Miami (MIA) and Miami (OPF).