Dulles to Portsmouth (IAD–PSM) — Airlines, Schedules & Connections

IAD Airport Page →
448 mi airlines 3/wk
On-time Some delays Frequent delays
Flight Schedule 0 flights Verified 3h ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  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...
Dulles to Portsmouth
Connecting service available through multiple hubs.
3 Flights/wk 448 mi 1h nonstop 19 1-stop hubs

While no nonstop service exists between IAD and PSM, connecting options are available through 19 hubs.

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

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for IAD to PSM.
1-STOP
One-Stop Connections
19
Hubs
~3h
Fastest
~22h
Longest
BDL ~3h 27m BOS ~3h 27m PHL ~3h 38m CLT ~4h 47m MDW ~4h 48m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
207
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
IAD → PSM
61%
Moderate delays possible. Allow buffer time.
Departing
61%
Return
PSM → IAD
68%
Moderate delays possible. Allow buffer time.
Arriving
68%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. IAD delays →
Know before you go

Travel Essentials

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

When it's 6:00 PM in Dulles, it's 6:00 PM in Portsmouth.
Distance & Flight Time
448 mi / 721 km
Nonstop flight time is approximately 1h 0m to 1h 9m.
Getting to IAD

WMATA Silver Line Metro now reaches Dulles directly; take Silver Line to Washington Dulles Airport station (about 65 min from Metro Center, ~$7). The connection opened in late 2022.Ride-shares from downtown DC run $35–60 and take 35–50 minutes via I-66 (longer during peak hours). Washington Flyer coach to Wiehle-Reston East Metro costs $6. The airport is 27 miles from downtown; taxis are expensive ($60–80).

Facts

IAD–PSM Quick Facts

Key statistics for the Dulles to Portsmouth route.
Route details
Distance448 mi / 721 km
Flight time1h to 1h 9m
Time difference0 hours
Airlines (nonstop)0
Weekly flights3 out
1-stop connections19 hubs
Origin: IAD
Full nameWashington Dulles International Airport
IATA / ICAOIAD / KIAD
TimezoneAmerica/New_York
Passengers/yr26.0M
Elevation312 ft / 95 m
Destination: PSM
Full namePortsmouth International Airport at Pease
IATA / ICAOPSM / KPSM
TimezoneAmerica/New_York
Passengers/yr0.2M
Elevation100 ft / 30 m
FAQ

Frequently Asked Questions

Common questions about IAD to PSM flights.
Nonstop flights from Washington Dulles International Airport to Portsmouth International Airport at Pease take approximately 1h to 1h 9m. The route covers 448 miles.
There are approximately 3 nonstop flights per week from IAD to PSM.
Yes, 1-stop connections are available through BDL, BOS, PHL, CLT, MDW, PIE, BNA, SFB, SRQ, PBI, RSW, PLS, MIA, RDU, KEF, SFO, HHN, PGD and MCO. These options provide additional schedule flexibility.
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 IAD to PSM

Washington Dulles International Airport (IAD) and Portsmouth International Airport at Pease (PSM) are connected through multiple connecting hub airports.

IAD to PSM Flight Duration and Schedule

Nonstop flight time from IAD to PSM ranges from 1 hours 0 minutes to 1 hours 9 minutes. The route covers a distance of 448 miles (721 km).

Connecting Options and Alternatives

19 one-stop connections are available, with the fastest taking approximately 3 hours via BDL. Two-stop connections are also available via intermediate hubs.