| | AK-KANUTI NWR-KAN HEATING FUEL WITH DELIVERY | SOURDOUGH AIR SERVICE, INC. | $15,000 | US FISH AND WILDLIFE SERVICE | US FISH AND WILDLIFE SERVICE | — | 324110Petroleum Refineries | 9110FUELS, SOLID | Aug 3, 2020 | Aug 3, 2020 | Aug 2, 2021 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $914 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Aug 14, 2019 | Jul 20, 2019 | Aug 14, 2019 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $2,630 | DEPARTMENTAL OFFICES | US FISH AND WILDLIFE SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jul 24, 2019 | Jul 28, 2019 | Sep 15, 2019 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $4,623 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 12, 2019 | Jun 25, 2019 | Jul 3, 2019 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $10,210 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 11, 2019 | Jun 13, 2019 | Sep 30, 2019 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $38,706 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 3, 2019 | Jun 3, 2019 | Sep 27, 2019 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $3,396 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 25, 2018 | Sep 1, 2018 | Sep 30, 2018 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $7,690 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 25, 2018 | Jul 5, 2018 | Aug 15, 2018 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $2,044 | DEPARTMENTAL OFFICES | US FISH AND WILDLIFE SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 13, 2018 | Jun 14, 2018 | Jul 16, 2018 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $749 | DEPARTMENTAL OFFICES | US FISH AND WILDLIFE SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 12, 2018 | Jun 15, 2018 | Sep 21, 2018 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $7,264 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 15, 2018 | Jun 4, 2018 | Sep 30, 2018 |
| | X:NOGRN, HEATING FUEL TO BE DELIVERED TO BETTLES, ALASKA | SOURDOUGH AIR SERVICE, INC. | $5,210 | NATIONAL PARK SERVICE | NATIONAL PARK SERVICE | — | 324110Petroleum Refineries | 9110FUELS, SOLID | May 14, 2018 | May 14, 2018 | Aug 10, 2018 |
| | FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $36,187 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 11, 2018 | May 18, 2018 | Sep 30, 2018 |
| | IGF::OT::IGF FLIGHT SERVICES IN SUPPORT OF NPS | SOURDOUGH AIR SERVICE, INC. | $2,056 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Aug 22, 2017 | Aug 22, 2017 | Aug 22, 2017 |
| | IGF::OT::IGF FLIGHT SERVICES IN SUPPORT OF THE NATIONAL PARK SERVICE PROJECT | SOURDOUGH AIR SERVICE, INC. | $0 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 22, 2017 | Jun 26, 2017 | Sep 13, 2017 |
| | IGF::OT::IGF FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $0 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 22, 2017 | Jul 1, 2017 | Sep 15, 2017 |
| | IGF::OT::IGF FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $3,598 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 21, 2017 | Jun 25, 2017 | Jul 4, 2017 |
| | IGF::OT::IGF FLIGHT SERVICES IN SUPPORT OF NPS | SOURDOUGH AIR SERVICE, INC. | $9,606 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 21, 2017 | Jun 23, 2017 | Aug 1, 2017 |
| | IGF::OT::IGF FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES | SOURDOUGH AIR SERVICE, INC. | $0 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 20, 2017 | Jul 1, 2017 | Sep 15, 2017 |
| | IGF::OT::IGF FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $26,329 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 17, 2017 | May 20, 2017 | Sep 25, 2017 |
| | NOGRN, HEATING FUEL FOR BETTLES, AK | SOURDOUGH AIR SERVICE, INC. | $12,520 | NATIONAL PARK SERVICE | NATIONAL PARK SERVICE | — | 324110Petroleum Refineries | 9110FUELS, SOLID | May 5, 2017 | May 5, 2017 | Aug 10, 2017 |
| | IGF::OT::IGF FIXED WING FLIGHT SERVICES IN SUPPORT OF DOI ALASKA POINT TO POINT AND SPECIAL USE ACTIVITIES. | SOURDOUGH AIR SERVICE, INC. | $2,637 | DEPARTMENTAL OFFICES | US FISH AND WILDLIFE SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Apr 18, 2017 | May 15, 2017 | Aug 31, 2017 |
| | IGF::OT::IGF ARA FLIGHT SERVICES IN SUPPORT OF NPS - NOAT RIVER TRIP | SOURDOUGH AIR SERVICE, INC. | $4,062 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jul 28, 2016 | Jul 31, 2016 | Aug 31, 2016 |
| | IGF::OT::IGF ARA FLIGHT SERVICES IN SUPPORT OF NPS - DON AND TRACY P. TRIP | SOURDOUGH AIR SERVICE, INC. | $1,347 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jul 27, 2016 | Jul 28, 2016 | Aug 31, 2016 |
| | IGF::OT::IGF ARA FLIGHT SERVICES IN SUPPORT OF US FWS R7 - AVIATION FIRE BIRD SURVEY AT BETTLES | SOURDOUGH AIR SERVICE, INC. | $6,352 | US FISH AND WILDLIFE SERVICE | US FISH AND WILDLIFE SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 10, 2016 | Jun 10, 2016 | Oct 13, 2016 |