Live signal for LGA to DCA · Updated September 24, 2026
Flights from LaGuardia to Washington DC
What have fares historically cost? — LaGuardia (LGA) to Washington DC (DCA)
Historical prices in USD for LaGuardia (LGA) to Washington DC (DCA) (round-trip) ranged from $149 to $355 across 239 accepted price checks from 2026-06-26 through 2026-09-24, inclusive; source: SERPRadio verified price observations; these are historical observations, not fares available to buy now. The latest accepted price check for LaGuardia (LGA) to Washington DC (DCA) was observed on 2026-09-24, based on 1 accepted observation from 2026-09-24 through 2026-09-24; source: SERPRadio verified price observations.
Observed prices by departure day — LaGuardia (LGA) to Washington DC (DCA)
For LaGuardia (LGA) to Washington DC (DCA), historical round-trip USD median prices by departure weekday were Monday $257 (36 checks); Tuesday $237 (26 checks); Wednesday $237 (30 checks); Thursday $238 (22 checks); Friday $239 (33 checks); Saturday $237 (31 checks); Sunday $266 (61 checks), from 239 accepted price checks observed from 2026-06-26 through 2026-09-24; source: SERPRadio verified price observations. Comparisons describe only qualifying captured departure-day cells, not a recommendation for all flights.
Observed prices by departure month — LaGuardia (LGA) to Washington DC (DCA)
For LaGuardia (LGA) to Washington DC (DCA), historical round-trip USD median prices by departure month were 2026-08 $219 (86 checks); 2026-09 $239 (83 checks); 2026-10 $299 (61 checks), from 230 accepted price checks observed from 2026-07-02 through 2026-09-24; source: SERPRadio verified price observations. Named-month comparisons do not establish annual seasonality.
How reliable were these flights? — LaGuardia (LGA) to Washington DC (DCA)
Across 3169 LaGuardia (LGA) to Washington DC (DCA) flights reported from 2025-09-01 through 2026-04-30, 78.8% of departures were on time; source: U.S. Department of Transportation. Across 3169 LaGuardia (LGA) to Washington DC (DCA) flights reported from 2025-09-01 through 2026-04-30, 5.3% were canceled; source: U.S. Department of Transportation.
Which departure days were most reliable? — LaGuardia (LGA) to Washington DC (DCA)
For LaGuardia (LGA) to Washington DC (DCA), Saturday and Wednesday were the most reliable departure days among the qualifying weekday groups across 3169 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation. For LaGuardia (LGA) to Washington DC (DCA), Thursday and Friday were the least reliable departure days among the qualifying weekday groups across 3169 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation.
Traveler questions — LaGuardia (LGA) to Washington DC (DCA)
What prices were observed for LaGuardia (LGA) to Washington DC (DCA)?
Historical prices in USD for LaGuardia (LGA) to Washington DC (DCA) (round-trip) ranged from $149 to $355 across 239 accepted price checks from 2026-06-26 through 2026-09-24, inclusive; source: SERPRadio verified price observations; these are historical observations, not fares available to buy now.
When was the latest verified price check for LaGuardia (LGA) to Washington DC (DCA)?
The latest accepted price check for LaGuardia (LGA) to Washington DC (DCA) was observed on 2026-09-24, based on 1 accepted observation from 2026-09-24 through 2026-09-24; source: SERPRadio verified price observations.
How did observed prices differ by departure day for LaGuardia (LGA) to Washington DC (DCA)?
For LaGuardia (LGA) to Washington DC (DCA), historical round-trip USD median prices by departure weekday were Monday $257 (36 checks); Tuesday $237 (26 checks); Wednesday $237 (30 checks); Thursday $238 (22 checks); Friday $239 (33 checks); Saturday $237 (31 checks); Sunday $266 (61 checks), from 239 accepted price checks observed from 2026-06-26 through 2026-09-24; source: SERPRadio verified price observations. Comparisons describe only qualifying captured departure-day cells, not a recommendation for all flights.
How did observed prices differ by departure month for LaGuardia (LGA) to Washington DC (DCA)?
For LaGuardia (LGA) to Washington DC (DCA), historical round-trip USD median prices by departure month were 2026-08 $219 (86 checks); 2026-09 $239 (83 checks); 2026-10 $299 (61 checks), from 230 accepted price checks observed from 2026-07-02 through 2026-09-24; source: SERPRadio verified price observations. Named-month comparisons do not establish annual seasonality.
What operational reliability is supported for LaGuardia (LGA) to Washington DC (DCA)?
Across 3169 LaGuardia (LGA) to Washington DC (DCA) flights reported from 2025-09-01 through 2026-04-30, 78.8% of departures were on time; source: U.S. Department of Transportation.
Which departure days were most reliable for LaGuardia (LGA) to Washington DC (DCA)?
For LaGuardia (LGA) to Washington DC (DCA), Saturday and Wednesday were the most reliable departure days among the qualifying weekday groups across 3169 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation.
Which departure days were least reliable for LaGuardia (LGA) to Washington DC (DCA)?
For LaGuardia (LGA) to Washington DC (DCA), Thursday and Friday were the least reliable departure days among the qualifying weekday groups across 3169 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation.
What cancellation rate was observed for LaGuardia (LGA) to Washington DC (DCA)?
Across 3169 LaGuardia (LGA) to Washington DC (DCA) flights reported from 2025-09-01 through 2026-04-30, 5.3% were canceled; source: U.S. Department of Transportation.
Sources and methodology — LaGuardia (LGA) to Washington DC (DCA)
- SERPRadio verified price observations; 2026-06-26–2026-09-24; 239 price checks.
- SERPRadio verified price observations; 2026-09-24–2026-09-24; 1 price checks.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 3169 flights.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 3169 flights.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 3169 flights.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 3169 flights.
- SERPRadio verified price observations; 2026-06-26–2026-09-24; 239 price checks.
- SERPRadio verified price observations; 2026-07-02–2026-09-24; 230 price checks.
Who: SERP Radio route dossier system
How: Route pages combine accepted fare observations, timing guidance, carrier mix, and route-level context from current NYC corridor feeds.
Why: This page exists to explain current fare behavior on one route and point to the next timing or airport surface when needed.
Limits: If route coverage is thin, the page falls back to limited route guidance instead of publishing weak pricing claims.
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