> ## Content Index > Fetch the complete content index at: https://www.acmiworld.com/llms.txt > Use this file to discover other available public pages before exploring further. # Top 10 Boeing 737 ACMI Providers in Europe - URL: https://www.acmiworld.com/top-10-boeing-737-acmi-providers-in-europe/ - Published: 2026-08-08T13:13:36.000Z - Updated: 2026-08-08T13:13:36.000Z - Author: ACMI World The Boeing 737 remains one of the most important aircraft families in European short-haul aviation. Airlines use Boeing 737 ACMI capacity to cover seasonal peaks, aircraft delivery delays and unexpected fleet groundings. The model is particularly attractive for carriers that already operate 737 fleets because fleet integration can be easier. ACMI provides the aircraft, crew, maintenance and insurance under one operating package. Airlines evaluating the structure can read our guide to the [benefits of ACMI leasing for airlines](https://www.acmiworld.com/benefits-of-acmi-leasing-for-airlines/). Europe has several operators with dedicated Boeing 737 capacity. This ranking focuses on fleet relevance, ACMI specialization and current ability to support airline customers. ## 1\. Enter Air [Enter Air](https://business.enterair.pl/en/offer/charter/?ref=acmiworld.com) operates one of the largest Boeing 737 fleets available for ACMI and charter work in Europe. The Polish airline operates more than 30 Boeing 737 aircraft across the 737-800 and 737 MAX 8 variants. Aircraft are positioned across several European bases. Enter Air also maintains permanent and seasonal operations in markets including Germany, Spain, France and the United Kingdom. Enter Air explicitly offers aircraft under ACMI wet lease arrangements. Its fleet size gives the company meaningful flexibility when airlines require several aircraft rather than a single replacement unit. The 737-800 also remains one of the most established narrowbody aircraft in the secondary leasing market. Airlines evaluating fleet economics can review our guide to [Boeing 737 lease costs in 2026](https://www.acmiworld.com/boeing-737-lease-cost-in-2026/). **Best for:** Multi-aircraft European ACMI programs. ## 2\. AirExplore [AirExplore](https://airexplore.aero/?ref=acmiworld.com) is a Slovak ACMI specialist and part of Avia Solutions Group. The carrier reported 12 aircraft operating at the end of 2025\. Its core fleet is centered around the Boeing 737-800\. AirExplore has accumulated more than 228,000 block hours across its operations. The airline continues to sign European wet lease agreements. Its 2026 program includes Boeing 737-800 aircraft operating for Enter Air during the summer season. AirExplore is particularly relevant for airlines seeking conventional 189-seat 737-800 capacity. **Best for:** Established 737-800 ACMI operations. ## 3\. KlasJet [KlasJet](https://acmi.klasjet.aero/?ref=acmiworld.com) operates Boeing 737-800 aircraft specifically configured for ACMI work. Its ACMI fleet uses the 737-800 with configurations of 186 or 189 passengers. KlasJet entered the ACMI sector in 2022 after building its business in premium charter operations. The company is part of Avia Solutions Group. That gives KlasJet access to a wider aviation ecosystem covering maintenance, ground handling and other operational services. KlasJet positions its ACMI offering around short and long-term capacity requirements. **Best for:** 737-800 capacity backed by a large aviation group. ## 4\. GetJet Airlines [GetJet Airlines](https://getjet.aero/?ref=acmiworld.com) is a Lithuanian ACMI and charter airline with a mixed Airbus and Boeing fleet. Its current fleet includes five Boeing 737 NG aircraft alongside A320 and A321 capacity. GetJet offers both short-term and long-term ACMI programs. The company also signed a major long-term ACMI agreement with Eurowings in 2026\. Six GetJet aircraft were scheduled to support the Lufthansa Group carrier from Hamburg. A mixed fleet can be useful for airline customers that want access to several narrowbody options through one ACMI provider. **Best for:** Airlines comparing Boeing and Airbus ACMI capacity. ## 5\. SkyUp Airlines and SkyUp MT [SkyUp](https://skyup.aero/en/acmi?ref=acmiworld.com) has developed a substantial ACMI operation around the Boeing 737. The SkyUp fleet includes eight Boeing 737-800 aircraft and two Boeing 737-700 aircraft. The aircraft are available for charter and ACMI contracts. SkyUp MT provides the group with a Maltese operating platform for European operations. The company began operating under ACMI contracts in 2023. The 737-800 aircraft typically provide 189 seats. The 737-700 provides additional flexibility for routes that require lower capacity. Airlines dealing with unexpected fleet shortages can also review the [aircraft grounding causes that create ACMI demand](https://www.acmiworld.com/10-aircraft-grounding-causes-that-create-acmi-demand/). **Best for:** Flexible 737-700 and 737-800 capacity. ## 6\. FLY4 Airlines [FLY4 Airlines](https://fly4airlines.com/?ref=acmiworld.com) is an Irish ACMI operator built around the Boeing 737-800. The airline operates four 737-800 aircraft with 189-seat configurations. Its commercial model focuses on ACMI capacity and charter operations. FLY4 specifically targets capacity problems caused by AOG events, aircraft delivery delays and supply chain issues. That positioning makes the airline particularly relevant for carriers requiring short or medium-term replacement capacity. These scenarios have become increasingly important as airlines face engine and aircraft availability constraints. ACMI World covers the issue in our analysis of [why airlines are turning to ACMI in 2026](https://www.acmiworld.com/why-airlines-are-turning-to-acmi-in-2026-gtf-groundings-delivery-delays-and-the-capacity-crunch/). **Best for:** AOG coverage and temporary 737-800 capacity. ## 7\. Ascend Airways [Ascend Airways](https://ascendairways.aero/?ref=acmiworld.com) is a UK ACMI operator backed by Avia Solutions Group. The airline operates newer-generation Boeing 737 aircraft. Its fleet strategy includes both NG and MAX variants. Ascend has added multiple 737 MAX 8 aircraft with 189-seat configurations. Ascend was created to expand Avia Solutions Group's ACMI and charter presence in the United Kingdom. The carrier operates under a UK AOC. The MAX 8 gives Ascend a different proposition from providers centered entirely around older 737-800 aircraft. **Best for:** UK-based Boeing 737 MAX ACMI requirements. ## 8\. HelloJets [HelloJets](https://hellojets.com/charter-acmi/?ref=acmiworld.com) is a Romanian capacity provider focused on ACMI and charter services. Its fleet includes four Boeing 737-800 aircraft and one Boeing 737-700\. HelloJets also operates Airbus A320 aircraft. The company provides short and long-term wet leases. Its ACMI business supports airlines across Europe and other international markets. HelloJets also maintains its own aviation training operation and maintenance capabilities. **Best for:** Eastern European 737 ACMI capacity. ## 9\. Airseven [Airseven](https://airseven.dk/en/flights/?ref=acmiworld.com) is a Danish carrier operating a standardized Boeing 737-800 fleet. The company currently operates four 737-800 aircraft. Each aircraft can support charter and ACMI requirements. Airseven participates in the ACMI market during periods when aircraft are available outside its core charter program. Its Scandinavian base can make the carrier particularly relevant for Northern European capacity requirements. Seasonality plays a major role in aircraft utilization. Our guide to [seasonal demand and ACMI leasing](https://www.acmiworld.com/seasonal-demand-and-acmi-leasing/) covers why capacity moves between markets throughout the year. **Best for:** Scandinavian and seasonal ACMI requirements. ## 10\. ETF Airways [ETF Airways](https://www.etfairways.com/?ref=acmiworld.com) is a Croatian airline centered around Boeing 737-800 operations. Its 737-800 aircraft are configured with 189 seats. ETF's commercial model can shift between charter and ACMI work depending on customer requirements. The airline emphasizes a flexible organizational structure that can support predominantly ACMI operations when required. ETF can therefore be relevant for carriers seeking European 737 capacity from an independent operator. **Best for:** Flexible charter and ACMI programs. # Why the Boeing 737 Works Well for ACMI Fleet commonality can matter when an airline needs additional capacity quickly. A carrier already operating Boeing 737 aircraft may have established airport procedures and ground handling processes around the type. The 737-800 also offers a widely understood 189-seat configuration. This makes the aircraft useful for leisure airlines and low-cost carriers. The MAX 8 brings newer technology into the ACMI market. Operators such as Ascend Airways and Enter Air can provide access to this generation of aircraft. ## Boeing 737-800 vs 737 MAX 8 for ACMI The Boeing 737-800 has a large installed fleet and broad operational familiarity. The MAX 8 offers improved fuel efficiency and additional range. Availability remains an important factor when selecting either aircraft. An airline dealing with an immediate capacity shortage may prioritize deployment speed. A longer ACMI contract can justify a deeper comparison of aircraft economics. For broader benchmarking, see our guide to [aircraft lease rates by model in 2026](https://www.acmiworld.com/aircraft-lease-rates-by-model-in-2026/). # How Much Does Boeing 737 ACMI Cost? ACMI pricing is usually structured around block hours. The operator supplies the aircraft, crew, maintenance and insurance. The customer generally carries several variable operating expenses under the contract. Minimum guaranteed utilization can materially affect the economics. Positioning flights, crew expenses and operating geography can also influence the final quotation. Read our detailed guide to [ACMI lease pricing and what airlines actually pay](https://www.acmiworld.com/acmi-lease-pricing-explained-what-airlines-actually-pay-for-capacity/) before comparing provider proposals. # How to Request Boeing 737 ACMI Capacity Airlines should prepare a clear operational requirement before approaching providers. The request should include: - Aircraft type - Required number of aircraft - Start date - Contract duration - Planned base - Expected block hours - Route network - Required seating configuration - Traffic rights - Branding requirements - Crew requirements - Expected utilization Providing this information allows operators to assess aircraft availability quickly. ACMI World has published a complete guide covering [how to structure an ACMI RFP for short-term airline capacity](https://www.acmiworld.com/how-to-structure-an-acmi-rfp-for-short-term-airline-capacity/). # Choosing a Boeing 737 ACMI Provider Aircraft availability should be the first filter. Airlines should then evaluate regulatory approvals, operational history and aircraft configuration. Maintenance support also matters. A provider with access to replacement aircraft can have an advantage during technical disruptions. Geography should be considered as well. Positioning a 737 across Europe creates additional cost and operational complexity. The best provider therefore depends on the exact mission. Enter Air offers significant fleet scale. AirExplore and KlasJet specialize heavily in ACMI. GetJet provides mixed-fleet flexibility. SkyUp brings a substantial 737 operation. FLY4 and Ascend add newer capacity into the European market. For a broader comparison, see ACMI World's [Top 10 ACMI Airlines in Europe](https://www.acmiworld.com/top-10-acmi-airlines-in-europe/) and [Top 20 ACMI Operators Worldwide](https://www.acmiworld.com/top-20-acmi-operators-in-the-world-2026-rankings/).