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ICAO SWA

Southwest Airlines

In July 2026 Southwest Airlines operated 127,543 flights on US routes, carried 15.9 million passengers on them and 8,910 tonnes of cargo, according to the US BTS. Year to date: 825,780 flights operated (Jan–Jul 2026), down 0.3% on a year earlier.

Official · July 2026 according to the US BTS only flights to or from one country, not the full total

Flights operated over time

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January104,801103,858▼ 0.9%
February102,054102,322▲ 0.3%
March125,050124,265▼ 0.6%
April120,060120,445▲ 0.3%
May122,329123,206▲ 0.7%
June125,588124,141▼ 1.2%
July128,440127,543▼ 0.7%
August116,589––
September111,953––
October123,595–in progress
November115,093––
December120,374––
Year to date (Jan–Jul)828,322825,780▼ 0.3%

according to the US BTS

Passengers over time

only flights to or from one country, not the full total
The most recent periods19 periods
PeriodPassengers 2025Passengers 2026Change vs last year
January11,391,63011,236,312▼ 1.4%
February11,269,88111,572,644▲ 2.7%
March14,788,84514,800,397▲ 0.1%
April14,093,09613,923,366▼ 1.2%
May15,092,75615,185,155▲ 0.6%
June15,638,32315,852,427▲ 1.4%
July15,940,62515,877,431▼ 0.4%
August14,504,298––
September13,776,100––
October15,581,965–in progress
November13,426,329––
December14,352,955––
Year to date (Jan–Jul)98,215,15698,447,732▲ 0.2%

according to the US BTS

Tonnes of cargo over time

only flights to or from one country, not the full total
The most recent periods19 periods
PeriodTonnes of cargo 2025Tonnes of cargo 2026Change vs last year
January8,9407,935▼ 11.2%
February8,2288,097▼ 1.6%
March8,4439,055▲ 7.3%
April9,0749,383▲ 3.4%
May9,3329,794▲ 5.0%
June8,0899,066▲ 12.1%
July8,5008,910▲ 4.8%
August8,452––
September8,484––
October8,877–in progress
November8,073––
December8,896––
Year to date (Jan–Jul)60,60762,241▲ 2.7%

according to the US BTS

Cancelled flights over time

collected from public airport flight boards (Avionio) — not an official count

0 September 2026

according to Avionio

Scheduled flights over time

collected from public airport flight boards (Avionio) — not an official count

374 September 2026

according to Avionio

Seats offered over time

only flights to or from one country, not the full total
The most recent periods19 periods
PeriodSeats offered 2025Seats offered 2026Change vs last year
January16,813,23116,780,086▼ 0.2%
February16,375,16216,387,680▲ 0.1%
March20,051,52619,874,343▼ 0.9%
April19,316,70819,294,231▼ 0.1%
May19,708,31119,769,008▲ 0.3%
June20,243,78819,953,457▼ 1.4%
July20,733,80020,524,373▼ 1.0%
August18,822,499––
September18,091,487––
October19,956,485–in progress
November18,605,851––
December19,490,794––
Year to date (Jan–Jul)133,242,526132,583,178▼ 0.5%

according to the US BTS

Load factor (computed)

only flights to or from one country, not the full total

Passengers ÷ seats offered, both as reported by the US BTS for the same months. Computed by us; the two source series are shown on this page.

The most recent periods19 periods
PeriodLoad factor 2025Load factor 2026Change vs last year
January67.8%67.0%▼ 1.2%
February68.8%70.6%▲ 2.6%
March73.8%74.5%▲ 1.0%
April73.0%72.2%▼ 1.1%
May76.6%76.8%▲ 0.3%
June77.2%79.4%▲ 2.8%
July76.9%77.4%▲ 0.6%
August77.1%––
September76.1%––
October78.1%–in progress
November72.2%––
December73.6%––
Year-to-date average (Jan–Jul)73.4%74.0%▲ 0.7%

Seasonality · flights operated by month

Year JanFebMarAprMayJunJulAugSepOctNovDec
2024 114,751 107,441 127,819 123,280 125,086 127,433 130,984 119,725 113,935 119,943 114,900 118,740
2025 104,801 102,054 125,050 120,060 122,329 125,588 128,440 116,589 111,953 123,595 115,093 120,374
2026 103,858 102,322 124,265 120,445 123,206 124,141 127,543

Flight numbers and routes

Busiest flight numbers

FlightRouteOn timeDepartures counted
WN311DAL–ECP30 legs75.6%1,292
WN312ECP–DAL29 legs85.7%1,084
WN185OAK–HOU60 legs69.3%986
WN197STL–LAS57 legs73.3%964
WN586CMH–MDW47 legs77.5%952
WN384MSY–AUS60 legs74.8%951
WN126MSY–BWI48 legs78.0%944
WN899MEM–HOU51 legs81.9%942
All 4,809 flight numbers of this airline

Busiest routes

RouteFlight numbersDepartures counted
DAL–HOUDallas Love Field · William P. Hobby Airport6714,606
HNL–OGGDaniel K. Inouye International Airport · Kahului International Airport18010,671
DEN–PHXDenver International Airport · Phoenix Sky Harbor International Airport1799,205
BWI–MCOBaltimore/Washington International Thurgood Marshall Airport · Orlando International Airport1648,774
SAN–SJCSan Diego International Airport · Mineta San Jose International Airport1768,602
SAN–SMFSan Diego International Airport · Sacramento International Airport1798,583
BUR–LASHollywood Burbank/Bob Hope Airport · Harry Reid International Airport1527,443
BUR–OAKHollywood Burbank/Bob Hope Airport · Oakland San Francisco Bay Airport1407,426
Routes directory859 airport pairs in total

Counted from the 4,809 flight numbers we publish under this airline's code, October 2024 to October 2026, according to Avionio, the US BTS. This is not the airline's full network, and where the source is an airport departures board a number can be a codeshare operated by another airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to each departure airport. Results combine the routes in this source’s coverage; a different mix of routes can change the averages.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay06:00–07:000.6min · 180,378 recorded · 178,867 measured
Gap to highest-delay hour24.4min06:00 ↔ 22:00
Recorded flights2,508,863Southwest Airlines

Departure hour

On-time departures Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00Fewer than 200 measured departures—12
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0095.4%0.7 min101,042101,726
06:0095.0%0.6 min178,867180,378
07:0092.7%2.0 min158,598159,738
08:0090.4%3.4 min164,882166,106
09:0086.7%5.7 min139,032140,061
10:0083.7%7.5 min159,086160,317
11:0079.8%10.0 min145,717146,931
12:0076.3%11.9 min148,764149,905
13:0073.3%13.8 min154,198155,352
14:0069.0%16.8 min144,547145,637
15:0067.0%18.0 min145,641146,824
16:0063.7%20.3 min146,952148,189
17:0062.3%21.6 min148,500149,943
18:0061.4%22.2 min155,308156,996
19:0059.9%23.5 min138,790140,235
20:0060.5%22.7 min134,180135,715
21:0056.7%25.0 min77,94678,983
22:0055.1%25.0 min38,69439,328
23:0077.7%9.5 min6,4716,497

Day of week

On-time departures Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday73.4%14.4 min372,739376,671
Tuesday80.3%9.7 min340,001342,683
Wednesday79.9%9.6 min338,163340,183
Thursday72.8%14.5 min369,964372,697
Friday73.1%15.0 min375,265378,489
Saturday77.6%11.2 min316,120318,552
Sunday71.1%15.9 min374,964379,588

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: domestic flights only

Hover, tap or focus a point to see its value, sample and source.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan83.1%7.0 min203,563209,309
Feb80.2%9.3 min199,407200,982
Mar75.2%13.5 min241,797244,730
Apr77.3%11.0 min234,541235,436
May71.4%15.6 min239,365240,465
Jun65.6%19.8 min241,781243,281
Jul66.2%20.5 min247,647250,671
Aug76.3%12.9 min114,084114,519
Sep80.8%9.2 min110,096110,361
Oct78.5%10.1 min197,639198,229
Nov81.2%9.0 min224,173226,529
Dec74.5%13.7 min233,123234,351

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 74.6% 1,872,335
  • Delayed >15 min 24.5% 614,881
  • Cancelled 0.9% 21,647
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Environment

Jet fuel consumed

Every gallon the airline reports to the US Department of Transportation (airline fuel cost and consumption report) — all scheduled and charter flights, domestic and international.

In June 2026, Southwest Airlines consumed 195,143,924 US gallons of fuel (192,278,017 on domestic and 2,865,907 on international flights), according to the US Bureau of Transportation Statistics — about 1,902,653 tonnes of CO₂.

The most recent periods18 periods
PeriodUS gallons of fuel 2025US gallons of fuel 2026Change vs last year
January155,956,271154,027,878▼ 1.2%
February152,805,451152,146,625▼ 0.4%
March191,604,350189,460,256▼ 1.1%
April182,786,292181,154,732▼ 0.9%
May188,505,695187,599,080▼ 0.5%
June198,895,237195,143,924▼ 1.9%
July204,776,497––
August179,491,289––
September169,597,479––
October187,947,431–in progress
November173,203,807––
December183,368,531––
Year to date (Jan–Jun)1,070,553,2961,059,532,495▼ 1.0%

CO₂ is self-computed: gallons × 9.75 kg, the EPA emission factor for kerosene-type jet fuel. The fuel figure itself is as reported.

US BTS — Airline fuel cost and consumption

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